From: Borislav Petkov <bp@alien8.de>
To: Juergen Gross <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-hyperv@vger.kernel.org, linux-doc@vger.kernel.org,
mikelley@microsoft.com, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
xen-devel@lists.xenproject.org, Jonathan Corbet <corbet@lwn.net>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH v6 00/16] x86/mtrr: fix handling with PAT but without MTRR
Date: Wed, 10 May 2023 01:36:41 +0200 [thread overview]
Message-ID: <20230509233641.GGZFrZCTDH7VwUMp5R@fat_crate.local> (raw)
In-Reply-To: <20230509201437.GFZFqprc6otRejDPUt@fat_crate.local>
On Tue, May 09, 2023 at 10:14:37PM +0200, Borislav Petkov wrote:
> On Tue, May 02, 2023 at 02:09:15PM +0200, Juergen Gross wrote:
> > This series tries to fix the rather special case of PAT being available
> > without having MTRRs (either due to CONFIG_MTRR being not set, or
> > because the feature has been disabled e.g. by a hypervisor).
>
> More weird stuff. With the series:
Yah, that was me.
That ->enabled thing is *two* bits. FFS.
More staring at this tomorrow, on a clear head.
diff --git a/arch/x86/include/uapi/asm/mtrr.h b/arch/x86/include/uapi/asm/mtrr.h
index a28e6bbd8f21..f476a1355182 100644
--- a/arch/x86/include/uapi/asm/mtrr.h
+++ b/arch/x86/include/uapi/asm/mtrr.h
@@ -84,7 +84,7 @@ typedef __u8 mtrr_type;
struct mtrr_state_type {
struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
- bool enabled;
+ unsigned char enabled;
bool have_fixed;
mtrr_type def_type;
};
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2023-05-09 23:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-02 12:09 [PATCH v6 00/16] x86/mtrr: fix handling with PAT but without MTRR Juergen Gross
2023-05-02 12:09 ` [PATCH v6 12/16] x86/mtrr: add mtrr=debug command line option Juergen Gross
2023-05-03 4:22 ` [PATCH v6 00/16] x86/mtrr: fix handling with PAT but without MTRR Michael Kelley (LINUX)
2023-05-03 18:14 ` Sohil Mehta
2023-05-03 19:12 ` Borislav Petkov
2023-05-09 20:14 ` Borislav Petkov
2023-05-09 23:36 ` Borislav Petkov [this message]
2023-05-10 13:30 ` Borislav Petkov
2023-05-10 13:31 ` Borislav Petkov
2023-05-10 15:53 ` Juergen Gross
2023-05-11 16:32 ` Borislav Petkov
2023-05-22 14:17 ` Juergen Gross
2023-05-30 15:28 ` Borislav Petkov
2023-05-31 7:28 ` Juergen Gross
2023-05-31 8:35 ` Borislav Petkov
2023-05-31 9:31 ` Juergen Gross
2023-05-31 9:58 ` Borislav Petkov
2023-05-31 14:20 ` Juergen Gross
[not found] ` <20230531174857.GDZHeIib57h5lT5Vh1@fat_crate.local>
2023-06-01 6:39 ` Juergen Gross
2023-06-01 12:48 ` Borislav Petkov
2023-06-01 12:53 ` Juergen Gross
2023-06-01 8:19 ` Juergen Gross
2023-06-01 13:22 ` Borislav Petkov
2023-06-01 14:33 ` Borislav Petkov
2023-06-01 14:34 ` Juergen Gross
2023-06-01 13:10 ` Juergen Gross
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