linux-kernel - [PATCH 2/2] Drivers: hv: Kconfig: Add HYPERV_VTL

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Message-Id: <1683816877-10747-2-git-send-email-ssengar@linux.microsoft.com>
Date:   Thu, 11 May 2023 07:54:37 -0700
From:   Saurabh Sengar <ssengar@...ux.microsoft.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
        decui@...rosoft.com, mikelley@...rosoft.com,
        linux-kernel@...r.kernel.org, linux-hyperv@...r.kernel.org
Cc:     ssengar@...rosoft.com
Subject: [PATCH 2/2] Drivers: hv: Kconfig: Add HYPERV_VTL_MODE dependencies

MTRRs are not per-VTL and are controlled by VTL0, make sure it
is disabled for all other VTLs.

X86_MPPARSE scans low memory for MP tables, which is not required
for Hyper-V VTL platforms.

Signed-off-by: Saurabh Sengar <ssengar@...ux.microsoft.com>
---
 drivers/hv/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 00242107d62e..c8d443886b9d 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -16,6 +16,8 @@ config HYPERV
 config HYPERV_VTL_MODE
 	bool "Enable Linux to boot in VTL context"
 	depends on X86_64 && HYPERV
+	depends on !MTRR
+	depends on !X86_MPPARSE
 	default n
 	help
 	  Virtual Secure Mode (VSM) is a set of hypervisor capabilities and
-- 
2.34.1