Patch "KVM/x86: Fix wrong macro references of X86_CR0_PG_BIT and X86_CR4_PAE_BIT in kvm_valid_sregs()" has been added to the 4.14-stable tree
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This is a note to let you know that I've just added the patch titled
KVM/x86: Fix wrong macro references of X86_CR0_PG_BIT and X86_CR4_PAE_BIT in kvm_valid_sregs()
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-x86-fix-wrong-macro-references-of-x86_cr0_pg_bit-and-x86_cr4_pae_bit-in-kvm_valid_sregs.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
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37b95951c58fdf08dc10afa9d02066ed9f176fb5Mon Sep 17 00:00:00 2001
From: Tianyu Lan <[email protected]>
Date: Tue, 16 Jan 2018 17:34:07 +0800
Subject: KVM/x86: Fix wrong macro references of X86_CR0_PG_BIT and X86_CR4_PAE_BIT in kvm_valid_sregs()
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From: Tianyu Lan <[email protected]>
commit 37b95951c58fdf08dc10afa9d02066ed9f176fb5 upstream.
kvm_valid_sregs() should use X86_CR0_PG and X86_CR4_PAE to check bit status rather than X86_CR0_PG_BIT and X86_CR4_PAE_BIT. This patch is to fix it.
--- arch/x86/kvm/x86.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
arch/x86/kvm/x86.c +2 -2
@@ -7482,13 +7482,13 @@ EXPORT_SYMBOL_GPL(kvm_task_switch);int kvm_valid_sregs (struct kvm_vcpu *vcpu,struct kvm_sregs *sregs) { -if ((sregs->efer &EFER_LME ) && (sregs->cr0 &X86_CR0_PG_BIT )) { +if ((sregs->efer &EFER_LME ) && (sregs->cr0 &X86_CR0_PG )) {/* * When EFER.LME and CR0.PG are set, the processor is in * 64-bit mode (though maybe in a 32-bit code segment). * CR4.PAE and EFER.LMA must be set. */ -if (!(sregs->cr4 &X86_CR4_PAE_BIT ) +if (!(sregs->cr4 &X86_CR4_PAE ) || !(sregs->efer &EFER_LMA ))return -EINVAL ; }else {
Patches currently in stable-queue which might be from [email protected] are
queue-4.14/kvm-x86-fix-wrong-macro-references-of-x86_cr0_pg_bit-and-x86_cr4_pae_bit-in-kvm_valid_sregs.patch