Commit 3f1a18b9 authored by Uros Bizjak's avatar Uros Bizjak Committed by Paolo Bonzini
Browse files

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: default avatarUros Bizjak <ubizjak@gmail.com>
Message-Id: <20201029135600.122392-1-ubizjak@gmail.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent e8614e5e

arch/x86/kvm/svm/svm.c

+0 −20
Original line number Diff line number Diff line
@@ -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()) {

arch/x86/kvm/vmx/vmx.c

+0 −20
Original line number Diff line number Diff line
@@ -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() */

arch/x86/kvm/x86.h

+20 −0
Original line number Diff line number Diff line
@@ -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);

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