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[ Upstream commitd0164c1619] On an EPT violation, bit 7 of the exit qualification is set if the guest linear-address is valid. The derived page fault error code should not be checked for this bit. Fixes:f300948251("KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid") Cc: stable@vger.kernel.org Signed-off-by: Sukrit Bhatnagar <Sukrit.Bhatnagar@sony.com> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Link: https://patch.msgid.link/20251106052853.3071088-1-Sukrit.Bhatnagar@sony.com Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __KVM_X86_VMX_COMMON_H
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#define __KVM_X86_VMX_COMMON_H
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#include <linux/kvm_host.h>
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#include "mmu.h"
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static inline int __vmx_handle_ept_violation(struct kvm_vcpu *vcpu, gpa_t gpa,
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unsigned long exit_qualification)
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{
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u64 error_code;
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/* Is it a read fault? */
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error_code = (exit_qualification & EPT_VIOLATION_ACC_READ)
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? PFERR_USER_MASK : 0;
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/* Is it a write fault? */
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error_code |= (exit_qualification & EPT_VIOLATION_ACC_WRITE)
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? PFERR_WRITE_MASK : 0;
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/* Is it a fetch fault? */
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error_code |= (exit_qualification & EPT_VIOLATION_ACC_INSTR)
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? PFERR_FETCH_MASK : 0;
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/* ept page table entry is present? */
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error_code |= (exit_qualification & EPT_VIOLATION_RWX_MASK)
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? PFERR_PRESENT_MASK : 0;
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if (exit_qualification & EPT_VIOLATION_GVA_IS_VALID)
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error_code |= (exit_qualification & EPT_VIOLATION_GVA_TRANSLATED) ?
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PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;
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return kvm_mmu_page_fault(vcpu, gpa, error_code, NULL, 0);
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}
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#endif /* __KVM_X86_VMX_COMMON_H */
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