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-rw-r--r--arch/x86/boot/compressed/Makefile7
-rw-r--r--arch/x86/boot/compressed/misc.c2
-rw-r--r--arch/x86/boot/compressed/misc.h2
-rw-r--r--arch/x86/boot/compressed/sev.c (renamed from arch/x86/boot/compressed/sev-es.c)4
-rw-r--r--arch/x86/include/asm/kvm_host.h15
-rw-r--r--arch/x86/include/asm/kvm_para.h10
-rw-r--r--arch/x86/include/asm/msr-index.h6
-rw-r--r--arch/x86/include/asm/processor.h2
-rw-r--r--arch/x86/include/asm/sev-common.h62
-rw-r--r--arch/x86/include/asm/sev.h (renamed from arch/x86/include/asm/sev-es.h)30
-rw-r--r--arch/x86/include/asm/vdso/clocksource.h2
-rw-r--r--arch/x86/include/uapi/asm/kvm.h2
-rw-r--r--arch/x86/kernel/Makefile6
-rw-r--r--arch/x86/kernel/cpu/amd.c20
-rw-r--r--arch/x86/kernel/cpu/mtrr/cleanup.c2
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c4
-rw-r--r--arch/x86/kernel/head64.c2
-rw-r--r--arch/x86/kernel/kvm.c129
-rw-r--r--arch/x86/kernel/kvmclock.c26
-rw-r--r--arch/x86/kernel/mmconf-fam10h_64.c2
-rw-r--r--arch/x86/kernel/nmi.c2
-rw-r--r--arch/x86/kernel/sev-shared.c (renamed from arch/x86/kernel/sev-es-shared.c)20
-rw-r--r--arch/x86/kernel/sev.c (renamed from arch/x86/kernel/sev-es.c)4
-rw-r--r--arch/x86/kernel/smpboot.c2
-rw-r--r--arch/x86/kvm/cpuid.c20
-rw-r--r--arch/x86/kvm/emulate.c2
-rw-r--r--arch/x86/kvm/kvm_emulate.h1
-rw-r--r--arch/x86/kvm/lapic.c2
-rw-r--r--arch/x86/kvm/mmu/mmu.c20
-rw-r--r--arch/x86/kvm/mmu/tdp_mmu.c17
-rw-r--r--arch/x86/kvm/svm/nested.c23
-rw-r--r--arch/x86/kvm/svm/sev.c32
-rw-r--r--arch/x86/kvm/svm/svm.c66
-rw-r--r--arch/x86/kvm/svm/svm.h39
-rw-r--r--arch/x86/kvm/vmx/capabilities.h3
-rw-r--r--arch/x86/kvm/vmx/nested.c29
-rw-r--r--arch/x86/kvm/vmx/vmx.c220
-rw-r--r--arch/x86/kvm/vmx/vmx.h12
-rw-r--r--arch/x86/kvm/x86.c155
-rw-r--r--arch/x86/mm/extable.c2
-rw-r--r--arch/x86/mm/mem_encrypt_identity.c6
-rw-r--r--arch/x86/pci/amd_bus.c2
-rw-r--r--arch/x86/platform/efi/efi_64.c2
-rw-r--r--arch/x86/realmode/init.c2
-rw-r--r--arch/x86/realmode/rm/trampoline_64.S4
45 files changed, 600 insertions, 422 deletions
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 6e5522aebbbd..431bf7f846c3 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -30,6 +30,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
KBUILD_CFLAGS := -m$(BITS) -O2
KBUILD_CFLAGS += -fno-strict-aliasing -fPIE
+KBUILD_CFLAGS += -Wundef
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
cflags-$(CONFIG_X86_32) := -march=i386
cflags-$(CONFIG_X86_64) := -mcmodel=small -mno-red-zone
@@ -48,10 +49,10 @@ KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no)
KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h
KBUILD_CFLAGS += $(CLANG_FLAGS)
-# sev-es.c indirectly inludes inat-table.h which is generated during
+# sev.c indirectly inludes inat-table.h which is generated during
# compilation and stored in $(objtree). Add the directory to the includes so
# that the compiler finds it even with out-of-tree builds (make O=/some/path).
-CFLAGS_sev-es.o += -I$(objtree)/arch/x86/lib/
+CFLAGS_sev.o += -I$(objtree)/arch/x86/lib/
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
GCOV_PROFILE := n
@@ -93,7 +94,7 @@ ifdef CONFIG_X86_64
vmlinux-objs-y += $(obj)/idt_64.o $(obj)/idt_handlers_64.o
vmlinux-objs-y += $(obj)/mem_encrypt.o
vmlinux-objs-y += $(obj)/pgtable_64.o
- vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) += $(obj)/sev-es.o
+ vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) += $(obj)/sev.o
endif
vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index dde042f64cca..743f13ea25c1 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -172,7 +172,7 @@ void __puthex(unsigned long value)
}
}
-#if CONFIG_X86_NEED_RELOCS
+#ifdef CONFIG_X86_NEED_RELOCS
static void handle_relocations(void *output, unsigned long output_len,
unsigned long virt_addr)
{
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index e5612f035498..31139256859f 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -79,7 +79,7 @@ struct mem_vector {
u64 size;
};
-#if CONFIG_RANDOMIZE_BASE
+#ifdef CONFIG_RANDOMIZE_BASE
/* kaslr.c */
void choose_random_location(unsigned long input,
unsigned long input_size,
diff --git a/arch/x86/boot/compressed/sev-es.c b/arch/x86/boot/compressed/sev.c
index 82041bd380e5..670e998fe930 100644
--- a/arch/x86/boot/compressed/sev-es.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -13,7 +13,7 @@
#include "misc.h"
#include <asm/pgtable_types.h>
-#include <asm/sev-es.h>
+#include <asm/sev.h>
#include <asm/trapnr.h>
#include <asm/trap_pf.h>
#include <asm/msr-index.h>
@@ -117,7 +117,7 @@ static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
#include "../../lib/insn.c"
/* Include code for early handlers */
-#include "../../kernel/sev-es-shared.c"
+#include "../../kernel/sev-shared.c"
static bool early_setup_sev_es(void)
{
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index cbbcee0a84f9..55efbacfc244 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -113,6 +113,7 @@
#define VALID_PAGE(x) ((x) != INVALID_PAGE)
#define UNMAPPED_GVA (~(gpa_t)0)
+#define INVALID_GPA (~(gpa_t)0)
/* KVM Hugepage definitions for x86 */
#define KVM_MAX_HUGEPAGE_LEVEL PG_LEVEL_1G
@@ -199,6 +200,7 @@ enum x86_intercept_stage;
#define KVM_NR_DB_REGS 4
+#define DR6_BUS_LOCK (1 << 11)
#define DR6_BD (1 << 13)
#define DR6_BS (1 << 14)
#define DR6_BT (1 << 15)
@@ -212,7 +214,7 @@ enum x86_intercept_stage;
* DR6_ACTIVE_LOW is also used as the init/reset value for DR6.
*/
#define DR6_ACTIVE_LOW 0xffff0ff0
-#define DR6_VOLATILE 0x0001e00f
+#define DR6_VOLATILE 0x0001e80f
#define DR6_FIXED_1 (DR6_ACTIVE_LOW & ~DR6_VOLATILE)
#define DR7_BP_EN_MASK 0x000000ff
@@ -407,7 +409,7 @@ struct kvm_mmu {
u32 pkru_mask;
u64 *pae_root;
- u64 *lm_root;
+ u64 *pml4_root;
/*
* check zero bits on shadow page table entries, these
@@ -1417,6 +1419,7 @@ struct kvm_arch_async_pf {
bool direct_map;
};
+extern u32 __read_mostly kvm_nr_uret_msrs;
extern u64 __read_mostly host_efer;
extern bool __read_mostly allow_smaller_maxphyaddr;
extern struct kvm_x86_ops kvm_x86_ops;
@@ -1775,9 +1778,15 @@ int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
unsigned long ipi_bitmap_high, u32 min,
unsigned long icr, int op_64_bit);
-void kvm_define_user_return_msr(unsigned index, u32 msr);
+int kvm_add_user_return_msr(u32 msr);
+int kvm_find_user_return_msr(u32 msr);
int kvm_set_user_return_msr(unsigned index, u64 val, u64 mask);
+static inline bool kvm_is_supported_user_return_msr(u32 msr)
+{
+ return kvm_find_user_return_msr(msr) >= 0;
+}
+
u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc);
u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 338119852512..69299878b200 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -7,8 +7,6 @@
#include <linux/interrupt.h>
#include <uapi/asm/kvm_para.h>
-extern void kvmclock_init(void);
-
#ifdef CONFIG_KVM_GUEST
bool kvm_check_and_clear_guest_paused(void);
#else
@@ -86,13 +84,14 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
}
#ifdef CONFIG_KVM_GUEST
+void kvmclock_init(void);
+void kvmclock_disable(void);
bool kvm_para_available(void);
unsigned int kvm_arch_para_features(void);
unsigned int kvm_arch_para_hints(void);
void kvm_async_pf_task_wait_schedule(u32 token);
void kvm_async_pf_task_wake(u32 token);
u32 kvm_read_and_reset_apf_flags(void);
-void kvm_disable_steal_time(void);
bool __kvm_handle_async_pf(struct pt_regs *regs, u32 token);
DECLARE_STATIC_KEY_FALSE(kvm_async_pf_enabled);
@@ -137,11 +136,6 @@ static inline u32 kvm_read_and_reset_apf_flags(void)
return 0;
}
-static inline void kvm_disable_steal_time(void)
-{
- return;
-}
-
static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token)
{
return false;
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 742d89a00721..211ba3375ee9 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -537,9 +537,9 @@
/* K8 MSRs */
#define MSR_K8_TOP_MEM1 0xc001001a
#define MSR_K8_TOP_MEM2 0xc001001d
-#define MSR_K8_SYSCFG 0xc0010010
-#define MSR_K8_SYSCFG_MEM_ENCRYPT_BIT 23
-#define MSR_K8_SYSCFG_MEM_ENCRYPT BIT_ULL(MSR_K8_SYSCFG_MEM_ENCRYPT_BIT)
+#define MSR_AMD64_SYSCFG 0xc0010010
+#define MSR_AMD64_SYSCFG_MEM_ENCRYPT_BIT 23
+#define MSR_AMD64_SYSCFG_MEM_ENCRYPT BIT_ULL(MSR_AMD64_SYSCFG_MEM_ENCRYPT_BIT)
#define MSR_K8_INT_PENDING_MSG 0xc0010055
/* C1E active bits in int pending message */
#define K8_INTP_C1E_ACTIVE_MASK 0x18000000
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 154321d29050..556b2b17c3e2 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -787,8 +787,10 @@ DECLARE_PER_CPU(u64, msr_misc_features_shadow);
#ifdef CONFIG_CPU_SUP_AMD
extern u32 amd_get_nodes_per_socket(void);
+extern u32 amd_get_highest_perf(void);
#else
static inline u32 amd_get_nodes_per_socket(void) { return 0; }
+static inline u32 amd_get_highest_perf(void) { return 0; }
#endif
static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h
new file mode 100644
index 000000000000..629c3df243f0
--- /dev/null
+++ b/arch/x86/include/asm/sev-common.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AMD SEV header common between the guest and the hypervisor.
+ *
+ * Author: Brijesh Singh <brijesh.singh@amd.com>
+ */
+
+#ifndef __ASM_X86_SEV_COMMON_H
+#define __ASM_X86_SEV_COMMON_H
+
+#define GHCB_MSR_INFO_POS 0
+#define GHCB_MSR_INFO_MASK (BIT_ULL(12) - 1)
+
+#define GHCB_MSR_SEV_INFO_RESP 0x001
+#define GHCB_MSR_SEV_INFO_REQ 0x002
+#define GHCB_MSR_VER_MAX_POS 48
+#define GHCB_MSR_VER_MAX_MASK 0xffff
+#define GHCB_MSR_VER_MIN_POS 32
+#define GHCB_MSR_VER_MIN_MASK 0xffff
+#define GHCB_MSR_CBIT_POS 24
+#define GHCB_MSR_CBIT_MASK 0xff
+#define GHCB_MSR_SEV_INFO(_max, _min, _cbit) \
+ ((((_max) & GHCB_MSR_VER_MAX_MASK) << GHCB_MSR_VER_MAX_POS) | \
+ (((_min) & GHCB_MSR_VER_MIN_MASK) << GHCB_MSR_VER_MIN_POS) | \
+ (((_cbit) & GHCB_MSR_CBIT_MASK) << GHCB_MSR_CBIT_POS) | \
+ GHCB_MSR_SEV_INFO_RESP)
+#define GHCB_MSR_INFO(v) ((v) & 0xfffUL)
+#define GHCB_MSR_PROTO_MAX(v) (((v) >> GHCB_MSR_VER_MAX_POS) & GHCB_MSR_VER_MAX_MASK)
+#define GHCB_MSR_PROTO_MIN(v) (((v) >> GHCB_MSR_VER_MIN_POS) & GHCB_MSR_VER_MIN_MASK)
+
+#define GHCB_MSR_CPUID_REQ 0x004
+#define GHCB_MSR_CPUID_RESP 0x005
+#define GHCB_MSR_CPUID_FUNC_POS 32
+#define GHCB_MSR_CPUID_FUNC_MASK 0xffffffff
+#define GHCB_MSR_CPUID_VALUE_POS 32
+#define GHCB_MSR_CPUID_VALUE_MASK 0xffffffff
+#define GHCB_MSR_CPUID_REG_POS 30
+#define GHCB_MSR_CPUID_REG_MASK 0x3
+#define GHCB_CPUID_REQ_EAX 0
+#define GHCB_CPUID_REQ_EBX 1
+#define GHCB_CPUID_REQ_ECX 2
+#define GHCB_CPUID_REQ_EDX 3
+#define GHCB_CPUID_REQ(fn, reg) \
+ (GHCB_MSR_CPUID_REQ | \
+ (((unsigned long)reg & GHCB_MSR_CPUID_REG_MASK) << GHCB_MSR_CPUID_REG_POS) | \
+ (((unsigned long)fn) << GHCB_MSR_CPUID_FUNC_POS))
+
+#define GHCB_MSR_TERM_REQ 0x100
+#define GHCB_MSR_TERM_REASON_SET_POS 12
+#define GHCB_MSR_TERM_REASON_SET_MASK 0xf
+#define GHCB_MSR_TERM_REASON_POS 16
+#define GHCB_MSR_TERM_REASON_MASK 0xff
+#define GHCB_SEV_TERM_REASON(reason_set, reason_val) \
+ (((((u64)reason_set) & GHCB_MSR_TERM_REASON_SET_MASK) << GHCB_MSR_TERM_REASON_SET_POS) | \
+ ((((u64)reason_val) & GHCB_MSR_TERM_REASON_MASK) << GHCB_MSR_TERM_REASON_POS))
+
+#define GHCB_SEV_ES_REASON_GENERAL_REQUEST 0
+#define GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED 1
+
+#define GHCB_RESP_CODE(v) ((v) & GHCB_MSR_INFO_MASK)
+
+#endif
diff --git a/arch/x86/include/asm/sev-es.h b/arch/x86/include/asm/sev.h
index cf1d957c7091..fa5cd05d3b5b 100644
--- a/arch/x86/include/asm/sev-es.h
+++ b/arch/x86/include/asm/sev.h
@@ -10,34 +10,12 @@
#include <linux/types.h>
#include <asm/insn.h>
+#include <asm/sev-common.h>
-#define GHCB_SEV_INFO 0x001UL
-#define GHCB_SEV_INFO_REQ 0x002UL
-#define GHCB_INFO(v) ((v) & 0xfffUL)
-#define GHCB_PROTO_MAX(v) (((v) >> 48) & 0xffffUL)
-#define GHCB_PROTO_MIN(v) (((v) >> 32) & 0xffffUL)
-#define GHCB_PROTO_OUR 0x0001UL
-#define GHCB_SEV_CPUID_REQ 0x004UL
-#define GHCB_CPUID_REQ_EAX 0
-#define GHCB_CPUID_REQ_EBX 1
-#define GHCB_CPUID_REQ_ECX 2
-#define GHCB_CPUID_REQ_EDX 3
-#define GHCB_CPUID_REQ(fn, reg) (GHCB_SEV_CPUID_REQ | \
- (((unsigned long)reg & 3) << 30) | \
- (((unsigned long)fn) << 32))
+#define GHCB_PROTO_OUR 0x0001UL
+#define GHCB_PROTOCOL_MAX 1ULL
+#define GHCB_DEFAULT_USAGE 0ULL
-#define GHCB_PROTOCOL_MAX 0x0001UL
-#define GHCB_DEFAULT_USAGE 0x0000UL
-
-#define GHCB_SEV_CPUID_RESP 0x005UL
-#define GHCB_SEV_TERMINATE 0x100UL
-#define GHCB_SEV_TERMINATE_REASON(reason_set, reason_val) \
- (((((u64)reason_set) & 0x7) << 12) | \
- ((((u64)reason_val) & 0xff) << 16))
-#define GHCB_SEV_ES_REASON_GENERAL_REQUEST 0
-#define GHCB_SEV_ES_REASON_PROTOCOL_UNSUPPORTED 1
-
-#define GHCB_SEV_GHCB_RESP_CODE(v) ((v) & 0xfff)
#define VMGEXIT() { asm volatile("rep; vmmcall\n\r"); }
enum es_result {
diff --git a/arch/x86/include/asm/vdso/clocksource.h b/arch/x86/include/asm/vdso/clocksource.h
index 119ac8612d89..136e5e57cfe1 100644
--- a/arch/x86/include/asm/vdso/clocksource.h
+++ b/arch/x86/include/asm/vdso/clocksource.h
@@ -7,4 +7,6 @@
VDSO_CLOCKMODE_PVCLOCK, \
VDSO_CLOCKMODE_HVCLOCK
+#define HAVE_VDSO_CLOCKMODE_HVCLOCK
+
#endif /* __ASM_VDSO_CLOCKSOURCE_H */
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index 5a3022c8af82..0662f644aad9 100644
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -437,6 +437,8 @@ struct kvm_vmx_nested_state_hdr {
__u16 flags;
} smm;
+ __u16 pad;
+
__u32 flags;
__u64 preemption_timer_deadline;
};
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 0704c2a94272..0f66682ac02a 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -20,7 +20,7 @@ CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
CFLAGS_REMOVE_head64.o = -pg
-CFLAGS_REMOVE_sev-es.o = -pg
+CFLAGS_REMOVE_sev.o = -pg
endif
KASAN_SANITIZE_head$(BITS).o := n
@@ -28,7 +28,7 @@ KASAN_SANITIZE_dumpstack.o := n
KASAN_SANITIZE_dumpstack_$(BITS).o := n
KASAN_SANITIZE_stacktrace.o := n
KASAN_SANITIZE_paravirt.o := n
-KASAN_SANITIZE_sev-es.o := n
+KASAN_SANITIZE_sev.o := n
# With some compiler versions the generated code results in boot hangs, caused
# by several compilation units. To be safe, disable all instrumentation.
@@ -148,7 +148,7 @@ obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.o
obj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.o
obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o
-obj-$(CONFIG_AMD_MEM_ENCRYPT) += sev-es.o
+obj-$(CONFIG_AMD_MEM_ENCRYPT) += sev.o
###
# 64 bit specific files
ifeq ($(CONFIG_X86_64),y)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 2d11384dc9ab..c06ac56eae4d 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -593,8 +593,8 @@ static void early_detect_mem_encrypt(struct cpuinfo_x86 *c)
*/
if (cpu_has(c, X86_FEATURE_SME) || cpu_has(c, X86_FEATURE_SEV)) {
/* Check if memory encryption is enabled */
- rdmsrl(MSR_K8_SYSCFG, msr);
- if (!(msr & MSR_K8_SYSCFG_MEM_ENCRYPT))
+ rdmsrl(MSR_AMD64_SYSCFG, msr);
+ if (!(msr & MSR_AMD64_SYSCFG_MEM_ENCRYPT))
goto clear_all;
/*
@@ -1165,3 +1165,19 @@ void set_dr_addr_mask(unsigned long mask, int dr)
break;
}
}
+
+u32 amd_get_highest_perf(void)
+{
+ struct cpuinfo_x86 *c = &boot_cpu_data;
+
+ if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
+ (c->x86_model >= 0x70 && c->x86_model < 0x80)))
+ return 166;
+
+ if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
+ (c->x86_model >= 0x40 && c->x86_model < 0x70)))
+ return 166;
+
+ return 255;
+}
+EXPORT_SYMBOL_GPL(amd_get_highest_perf);
diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c
index 0c3b372318b7..b5f43049fa5f 100644
--- a/arch/x86/kernel/cpu/mtrr/cleanup.c
+++ b/arch/x86/kernel/cpu/mtrr/cleanup.c
@@ -836,7 +836,7 @@ int __init amd_special_default_mtrr(void)
if (boot_cpu_data.x86 < 0xf)
return 0;
/* In case some hypervisor doesn't pass SYSCFG through: */
- if (rdmsr_safe(MSR_K8_SYSCFG, &l, &h) < 0)
+ if (rdmsr_safe(MSR_AMD64_SYSCFG, &l, &h) < 0)
return 0;
/*
* Memory between 4GB and top of mem is forced WB by this magic bit.
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index b90f3f437765..558108296f3c 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -53,13 +53,13 @@ static inline void k8_check_syscfg_dram_mod_en(void)
(boot_cpu_data.x86 >= 0x0f)))
return;
- rdmsr(MSR_K8_SYSCFG, lo, hi);
+ rdmsr(MSR_AMD64_SYSCFG, lo, hi);
if (lo & K8_MTRRFIXRANGE_DRAM_MODIFY) {
pr_err(FW_WARN "MTRR: CPU %u: SYSCFG[MtrrFixDramModEn]"
" not cleared by BIOS, clearing this bit\n",
smp_processor_id());
lo &= ~K8_MTRRFIXRANGE_DRAM_MODIFY;
- mtrr_wrmsr(MSR_K8_SYSCFG, lo, hi);
+ mtrr_wrmsr(MSR_AMD64_SYSCFG, lo, hi);
}
}
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 18be44163a50..de01903c3735 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -39,7 +39,7 @@
#include <asm/realmode.h>
#include <asm/extable.h>
#include <asm/trapnr.h>
-#include <asm/sev-es.h>
+#include <asm/sev.h>
/*
* Manage page tables very early on.
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index d307c22e5c18..a26643dc6bd6 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -26,6 +26,7 @@
#include <linux/kprobes.h>
#include <linux/nmi.h>
#include <linux/swait.h>
+#include <linux/syscore_ops.h>
#include <asm/timer.h>
#include <asm/cpu.h>
#include <asm/traps.h>
@@ -37,6 +38,7 @@
#include <asm/tlb.h>
#include <asm/cpuidle_haltpoll.h>
#include <asm/ptrace.h>
+#include <asm/reboot.h>
#include <asm/svm.h>
DEFINE_STATIC_KEY_FALSE(kvm_async_pf_enabled);
@@ -345,7 +347,7 @@ static void kvm_guest_cpu_init(void)
wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
__this_cpu_write(apf_reason.enabled, 1);
- pr_info("KVM setup async PF for cpu %d\n", smp_processor_id());
+ pr_info("setup async PF for cpu %d\n", smp_processor_id());
}
if (kvm_para_has_feature(KVM_FEATURE_PV_EOI)) {
@@ -371,34 +373,17 @@ static void kvm_pv_disable_apf(void)
wrmsrl(MSR_KVM_ASYNC_PF_EN, 0);
__this_cpu_write(apf_reason.enabled, 0);
- pr_info("Unregister pv shared memory for cpu %d\n", smp_processor_id());
+ pr_info("disable async PF for cpu %d\n", smp_processor_id());
}
-static void kvm_pv_guest_cpu_reboot(void *unused)
+static void kvm_disable_steal_time(void)
{
- /*
- * We disable PV EOI before we load a new kernel by kexec,
- * since MSR_KVM_PV_EOI_EN stores a pointer into old kernel's memory.
- * New kernel can re-enable when it boots.
- */
- if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
- wrmsrl(MSR_KVM_PV_EOI_EN, 0);
- kvm_pv_disable_apf();
- kvm_disable_steal_time();
-}
+ if (!has_steal_clock)
+ return;
-static int kvm_pv_reboot_notify(struct notifier_block *nb,
- unsigned long code, void *unused)
-{
- if (code == SYS_RESTART)
- on_each_cpu(kvm_pv_guest_cpu_reboot, NULL, 1);
- return NOTIFY_DONE;
+ wrmsr(MSR_KVM_STEAL_TIME, 0, 0);
}
-static struct notifier_block kvm_pv_reboot_nb = {
- .notifier_call = kvm_pv_reboot_notify,
-};
-
static u64 kvm_steal_clock(int cpu)
{
u64 steal;
@@ -416,14 +401,6 @@ static u64 kvm_steal_clock(int cpu)
return steal;
}
-void kvm_disable_steal_time(void)
-{
- if (!has_steal_clock)
- return;
-
- wrmsr(MSR_KVM_STEAL_TIME, 0, 0);
-}
-
static inline void __set_percpu_decrypted(void *ptr, unsigned long size)
{
early_set_memory_decrypted((unsigned long) ptr, size);
@@ -451,6 +428,27 @@ static void __init sev_map_percpu_data(void)
}
}
+static void kvm_guest_cpu_offline(bool shutdown)
+{
+ kvm_disable_steal_time();
+ if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
+ wrmsrl(MSR_KVM_PV_EOI_EN, 0);
+ kvm_pv_disable_apf();
+ if (!shutdown)
+ apf_task_wake_all();
+ kvmclock_disable();
+}
+
+static int kvm_cpu_online(unsigned int cpu)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ kvm_guest_cpu_init();
+ local_irq_restore(flags);
+ return 0;
+}
+
#ifdef CONFIG_SMP
static DEFINE_PER_CPU(cpumask_var_t, __pv_cpu_mask);
@@ -635,31 +633,64 @@ static void __init kvm_smp_prepare_boot_cpu(void)
kvm_spinlock_init();
}
-static void kvm_guest_cpu_offline(void)
+static int kvm_cpu_down_prepare(unsigned int cpu)
{
- kvm_disable_steal_time();
- if (kvm_para_has_feature(KVM_FEATURE_PV_EOI))
- wrmsrl(MSR_KVM_PV_EOI_EN, 0);
- kvm_pv_disable_apf();
- apf_task_wake_all();
+ unsigned long flags;
+
+ local_irq_save(flags);
+ kvm_guest_cpu_offline(false);
+ local_irq_restore(flags);
+ return 0;
}
-static int kvm_cpu_online(unsigned int cpu)
+#endif
+
+static int kvm_suspend(void)
{
- local_irq_disable();
- kvm_guest_cpu_init();
- local_irq_enable();
+ kvm_guest_cpu_offline(false);
+
return 0;
}
-static int kvm_cpu_down_prepare(unsigned int cpu)
+static void kvm_resume(void)
{
- local_irq_disable();
- kvm_guest_cpu_offline();
- local_irq_enable();
- return 0;
+ kvm_cpu_online(raw_smp_processor_id());
+}
+
+static struct syscore_ops kvm_syscore_ops = {
+ .suspend = kvm_suspend,
+ .resume = kvm_resume,
+};
+
+static void kvm_pv_guest_cpu_reboot(void *unused)
+{
+ kvm_guest_cpu_offline(true);
+}
+
+static int kvm_pv_reboot_notify(struct notifier_block *nb,
+ unsigned long code, void *unused)
+{
+ if (code == SYS_RESTART)
+ on_each_cpu(kvm_pv_guest_cpu_reboot, NULL, 1);
+ return NOTIFY_DONE;
}
+static struct notifier_block kvm_pv_reboot_nb = {
+ .notifier_call = kvm_pv_reboot_notify,
+};
+
+/*
+ * After a PV feature is registered, the host will keep writing to the
+ * registered memory location. If the guest happens to shutdown, this memory
+ * won't be valid. In cases like kexec, in which you install a new kernel, this
+ * means a random memory location will be kept being written.
+ */
+#ifdef CONFIG_KEXEC_CORE
+static void kvm_crash_shutdown(struct pt_regs *regs)
+{
+ kvm_guest_cpu_offline(true);
+ native_machine_crash_shutdown(regs);
+}
#endif
static void __init kvm_guest_init(void)
@@ -704,6 +735,12 @@ static void __init kvm_guest_init(void)
kvm_guest_cpu_init();
#endif
+#ifdef CONFIG_KEXEC_CORE
+ machine_ops.crash_shutdown = kvm_crash_shutdown;
+#endif
+
+ register_syscore_ops(&kvm_syscore_ops);
+
/*
* Hard lockup detection is enabled by default. Disable it, as guests
* can get false positives too easily, for example if the host is
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index d37ed4e1d033..ad273e5861c1 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -20,7 +20,6 @@
#include <asm/hypervisor.h>
#include <asm/mem_encrypt.h>
#include <asm/x86_init.h>
-#include <asm/reboot.h>
#include <asm/kvmclock.h>
static int kvmclock __initdata = 1;
@@ -203,28 +202,9 @@ static void kvm_setup_secondary_clock(void)
}
#endif
-/*
- * After the clock is registered, the host will keep writing to the
- * registered memory location. If the guest happens to shutdown, this memory
- * won't be valid. In cases like kexec, in which you install a new kernel, this
- * means a random memory location will be kept being written. So before any
- * kind of shutdown from our side, we unregister the clock by writing anything
- * that does not have the 'enable' bit set in the msr
- */
-#ifdef CONFIG_KEXEC_CORE
-static void kvm_crash_shutdown(struct pt_regs *regs)