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From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
	x86@kernel.org
Cc: Juergen Gross <jgross@suse.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH v2 1/5] x86: add X86_FEATURE_XENPV to disabled-features.h
Date: Fri,  4 Nov 2022 08:26:57 +0100	[thread overview]
Message-ID: <20221104072701.20283-2-jgross@suse.com> (raw)
In-Reply-To: <20221104072701.20283-1-jgross@suse.com>

Add X86_FEATURE_XENPV to the features handled specially in
disabled-features.h.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/include/asm/disabled-features.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h
index 33d2cd04d254..c862552d7d6d 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -81,6 +81,12 @@
 # define DISABLE_SGX	(1 << (X86_FEATURE_SGX & 31))
 #endif
 
+#ifdef CONFIG_XEN_PV
+# define DISABLE_XENPV		0
+#else
+# define DISABLE_XENPV		(1 << (X86_FEATURE_XENPV & 31))
+#endif
+
 #ifdef CONFIG_INTEL_TDX_GUEST
 # define DISABLE_TDX_GUEST	0
 #else
@@ -98,7 +104,7 @@
 #define DISABLED_MASK5	0
 #define DISABLED_MASK6	0
 #define DISABLED_MASK7	(DISABLE_PTI)
-#define DISABLED_MASK8	(DISABLE_TDX_GUEST)
+#define DISABLED_MASK8	(DISABLE_XENPV|DISABLE_TDX_GUEST)
 #define DISABLED_MASK9	(DISABLE_SGX)
 #define DISABLED_MASK10	0
 #define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET)
-- 
2.35.3


  reply	other threads:[~2022-11-04  7:27 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-04  7:26 [PATCH v2 0/5] x86: Switch X86_FEATURE_XENPV to cpu_feature_enabled() use Juergen Gross
2022-11-04  7:26 ` Juergen Gross [this message]
2022-11-04 14:56   ` [PATCH v2 1/5] x86: add X86_FEATURE_XENPV to disabled-features.h Dave Hansen
2022-11-22 18:04   ` [tip: x86/cpu] x86/cpufeatures: Add " tip-bot2 for Juergen Gross
2022-11-04  7:26 ` [PATCH v2 2/5] x86: remove unneeded 64-bit dependency in arch_enter_from_user_mode() Juergen Gross
2022-11-04 14:58   ` Dave Hansen
2022-11-22 18:04   ` [tip: x86/cpu] x86/cpu: Remove " tip-bot2 for Juergen Gross
2022-11-04  7:26 ` [PATCH v2 3/5] x86: drop 32-bit Xen PV guest code in update_task_stack() Juergen Gross
2022-11-04 15:04   ` Dave Hansen
2022-11-22 18:04   ` [tip: x86/cpu] x86/cpu: Drop " tip-bot2 for Juergen Gross
2022-11-04  7:27 ` [PATCH v2 4/5] x86: remove X86_FEATURE_XENPV usage in setup_cpu_entry_area() Juergen Gross
2022-11-04 15:04   ` Dave Hansen
2022-11-22 18:04   ` [tip: x86/cpu] x86/cpu: Remove " tip-bot2 for Juergen Gross
2022-11-04  7:27 ` [PATCH v2 5/5] x86: switch to cpu_feature_enabled() for X86_FEATURE_XENPV Juergen Gross
2022-11-04 17:32   ` Dave Hansen
2022-11-22 18:04   ` [tip: x86/cpu] x86/cpu: Switch " tip-bot2 for Juergen Gross
2022-11-22 12:47 ` [PATCH v2 0/5] x86: Switch X86_FEATURE_XENPV to cpu_feature_enabled() use Juergen Gross

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