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[XEN][PATCH 2/3] x86/hvm: vmx: account for SHADOW_PAGING when use hvm_shadow_handle_cd()
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
- Date: Wed, 29 Oct 2025 23:54:57 +0000
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- Cc: Grygorii Strashko <grygorii_strashko@xxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Jason Andryuk <jason.andryuk@xxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>
- Delivery-date: Wed, 29 Oct 2025 23:55:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHcSS9urzbDquX9/E6h94nu5/XwxA==
- Thread-topic: [XEN][PATCH 2/3] x86/hvm: vmx: account for SHADOW_PAGING when use hvm_shadow_handle_cd()
From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
The hvm_shadow_handle_cd() can be used only with SHADOW_PAGING=y,
so guard hvm_shadow_handle_cd() call with IS_ENABLED(CONFIG_SHADOW_PAGING).
bloat-o-meter
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-290 (-290)
Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
---
xen/arch/x86/hvm/vmx/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index a7ee0519957a..05b394840e59 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -1506,7 +1506,7 @@ static int cf_check vmx_get_guest_pat(struct vcpu *v, u64
*gpat)
static void cf_check vmx_handle_cd(struct vcpu *v, unsigned long value)
{
- if ( !paging_mode_hap(v->domain) )
+ if ( IS_ENABLED(CONFIG_SHADOW_PAGING) && !paging_mode_hap(v->domain) )
{
/*
* For shadow, 'load IA32_PAT' VM-entry control is 0, so it cannot
--
2.34.1
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