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KVM/VMX/SVM: Move kvm_machine_check function to x86.h 

Move kvm_machine_check to x86.h to avoid two exact copies
of the same function in kvm.c and svm.c.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Message-Id: <20201029135600.122392-1-ubizjak@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Uros Bizjak 2020-10-29 14:56:00 +01:00 committed by Paolo Bonzini
parent e8614e5e8d
commit 3f1a18b9fa
3 changed files with 20 additions and 40 deletions
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20
arch/x86/kvm/svm/svm.c
View File

@ -33,7 +33,6 @@
#include <asm/debugreg.h>
#include <asm/kvm_para.h>
#include <asm/irq_remapping.h>
#include <asm/mce.h>
#include <asm/spec-ctrl.h>
#include <asm/cpu_device_id.h>
@ -1933,25 +1932,6 @@ static bool is_erratum_383(void)
return true;
}
/*
* Trigger machine check on the host. We assume all the MSRs are already set up
* by the CPU and that we still run on the same CPU as the MCE occurred on.
* We pass a fake environment to the machine check handler because we want
* the guest to be always treated like user space, no matter what context
* it used internally.
*/
static void kvm_machine_check(void)
{
#if defined(CONFIG_X86_MCE)
struct pt_regs regs = {
.cs = 3, /* Fake ring 3 no matter what the guest ran on */
.flags = X86_EFLAGS_IF,
};
do_machine_check(&regs);
#endif
}
static void svm_handle_mce(struct vcpu_svm *svm)
{
if (is_erratum_383()) {

20
arch/x86/kvm/vmx/vmx.c
View File

@ -40,7 +40,6 @@
#include <asm/irq_remapping.h>
#include <asm/kexec.h>
#include <asm/perf_event.h>
#include <asm/mce.h>
#include <asm/mmu_context.h>
#include <asm/mshyperv.h>
#include <asm/mwait.h>
@ -4716,25 +4715,6 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu,
return 1;
}
/*
* Trigger machine check on the host. We assume all the MSRs are already set up
* by the CPU and that we still run on the same CPU as the MCE occurred on.
* We pass a fake environment to the machine check handler because we want
* the guest to be always treated like user space, no matter what context
* it used internally.
*/
static void kvm_machine_check(void)
{
#if defined(CONFIG_X86_MCE)
struct pt_regs regs = {
.cs = 3, /* Fake ring 3 no matter what the guest ran on */
.flags = X86_EFLAGS_IF,
};
do_machine_check(&regs);
#endif
}
static int handle_machine_check(struct kvm_vcpu *vcpu)
{
/* handled by vmx_vcpu_run() */

20
arch/x86/kvm/x86.h
View File

@ -3,6 +3,7 @@
#define ARCH_X86_KVM_X86_H
#include <linux/kvm_host.h>
#include <asm/mce.h>
#include <asm/pvclock.h>
#include "kvm_cache_regs.h"
#include "kvm_emulate.h"
@ -366,6 +367,25 @@ static inline bool kvm_dr6_valid(u64 data)
return !(data >> 32);
}
/*
* Trigger machine check on the host. We assume all the MSRs are already set up
* by the CPU and that we still run on the same CPU as the MCE occurred on.
* We pass a fake environment to the machine check handler because we want
* the guest to be always treated like user space, no matter what context
* it used internally.
*/
static inline void kvm_machine_check(void)
{
#if defined(CONFIG_X86_MCE)
struct pt_regs regs = {
.cs = 3, /* Fake ring 3 no matter what the guest ran on */
.flags = X86_EFLAGS_IF,
};
do_machine_check(&regs);
#endif
}
void kvm_load_guest_xsave_state(struct kvm_vcpu *vcpu);
void kvm_load_host_xsave_state(struct kvm_vcpu *vcpu);
int kvm_spec_ctrl_test_value(u64 value);