linux-kernel - [PATCH v5 2/5] KVM: x86: dump_vmcs should not conflate EFER and PAT presence in VMCS

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Message-Id: <20210318120841.133123-3-david.edmondson@oracle.com>
Date:   Thu, 18 Mar 2021 12:08:38 +0000
From:   David Edmondson <david.edmondson@...cle.com>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...hat.com>, Joerg Roedel <joro@...tes.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        Wanpeng Li <wanpengli@...cent.com>, x86@...nel.org,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sean Christopherson <seanjc@...gle.com>,
        Jim Mattson <jmattson@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        David Edmondson <david.edmondson@...cle.com>
Subject: [PATCH v5 2/5] KVM: x86: dump_vmcs should not conflate EFER and PAT presence in VMCS

Show EFER and PAT based on their individual entry/exit controls.

Signed-off-by: David Edmondson <david.edmondson@...cle.com>
---
 arch/x86/kvm/vmx/vmx.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index b0ee9d240f73..6ab9e4d69aac 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -5837,11 +5837,12 @@ void dump_vmcs(void)
 	vmx_dump_sel("LDTR:", GUEST_LDTR_SELECTOR);
 	vmx_dump_dtsel("IDTR:", GUEST_IDTR_LIMIT);
 	vmx_dump_sel("TR:  ", GUEST_TR_SELECTOR);
-	if ((vmexit_ctl & (VM_EXIT_SAVE_IA32_PAT | VM_EXIT_SAVE_IA32_EFER)) ||
-	    (vmentry_ctl & (VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_IA32_EFER)))
-		pr_err("EFER =     0x%016llx  PAT = 0x%016llx\n",
-		       vmcs_read64(GUEST_IA32_EFER),
-		       vmcs_read64(GUEST_IA32_PAT));
+	if ((vmexit_ctl & VM_EXIT_SAVE_IA32_EFER) ||
+	    (vmentry_ctl & VM_ENTRY_LOAD_IA32_EFER))
+		pr_err("EFER= 0x%016llx\n", vmcs_read64(GUEST_IA32_EFER));
+	if ((vmexit_ctl & VM_EXIT_SAVE_IA32_PAT) ||
+	    (vmentry_ctl & VM_ENTRY_LOAD_IA32_PAT))
+		pr_err("PAT = 0x%016llx\n", vmcs_read64(GUEST_IA32_PAT));
 	pr_err("DebugCtl = 0x%016llx  DebugExceptions = 0x%016lx\n",
 	       vmcs_read64(GUEST_IA32_DEBUGCTL),
 	       vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS));
@@ -5878,10 +5879,10 @@ void dump_vmcs(void)
 	       vmcs_readl(HOST_IA32_SYSENTER_ESP),
 	       vmcs_read32(HOST_IA32_SYSENTER_CS),
 	       vmcs_readl(HOST_IA32_SYSENTER_EIP));
-	if (vmexit_ctl & (VM_EXIT_LOAD_IA32_PAT | VM_EXIT_LOAD_IA32_EFER))
-		pr_err("EFER = 0x%016llx  PAT = 0x%016llx\n",
-		       vmcs_read64(HOST_IA32_EFER),
-		       vmcs_read64(HOST_IA32_PAT));
+	if (vmexit_ctl & VM_EXIT_LOAD_IA32_EFER)
+		pr_err("EFER= 0x%016llx\n", vmcs_read64(HOST_IA32_EFER));
+	if (vmexit_ctl & VM_EXIT_LOAD_IA32_PAT)
+		pr_err("PAT = 0x%016llx\n", vmcs_read64(HOST_IA32_PAT));
 	if (cpu_has_load_perf_global_ctrl() &&
 	    vmexit_ctl & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
 		pr_err("PerfGlobCtl = 0x%016llx\n",
-- 
2.30.2