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Message-ID: <20250401113616.204203-9-Neeraj.Upadhyay@amd.com>
Date: Tue, 1 Apr 2025 17:06:07 +0530
From: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
To: <linux-kernel@...r.kernel.org>
CC: <bp@...en8.de>, <tglx@...utronix.de>, <mingo@...hat.com>,
<dave.hansen@...ux.intel.com>, <Thomas.Lendacky@....com>, <nikunj@....com>,
<Santosh.Shukla@....com>, <Vasant.Hegde@....com>,
<Suravee.Suthikulpanit@....com>, <David.Kaplan@....com>, <x86@...nel.org>,
<hpa@...or.com>, <peterz@...radead.org>, <seanjc@...gle.com>,
<pbonzini@...hat.com>, <kvm@...r.kernel.org>,
<kirill.shutemov@...ux.intel.com>, <huibo.wang@....com>,
<naveen.rao@....com>, <francescolavra.fl@...il.com>
Subject: [PATCH v3 08/17] x86/sev: Initialize VGIF for secondary VCPUs for Secure AVIC
From: Kishon Vijay Abraham I <kvijayab@....com>
Secure AVIC requires VGIF to be configured in VMSA. Configure
for secondary vCPUs (the configuration for boot CPU is done by
the hypervisor).
Signed-off-by: Kishon Vijay Abraham I <kvijayab@....com>
Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
---
Changes since v2:
- No change
arch/x86/coco/sev/core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
index 1122cf93983d..bc8c3b596dd1 100644
--- a/arch/x86/coco/sev/core.c
+++ b/arch/x86/coco/sev/core.c
@@ -1270,6 +1270,9 @@ static int wakeup_cpu_via_vmgexit(u32 apic_id, unsigned long start_ip)
vmsa->x87_ftw = AP_INIT_X87_FTW_DEFAULT;
vmsa->x87_fcw = AP_INIT_X87_FCW_DEFAULT;
+ if (cc_platform_has(CC_ATTR_SNP_SECURE_AVIC))
+ vmsa->vintr_ctrl |= V_GIF_MASK;
+
/* SVME must be set. */
vmsa->efer = EFER_SVME;
--
2.34.1
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