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From: Mario Limonciello <mario.limonciello@amd.com>
To: Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
Sandipan Das <sandipan.das@amd.com>,
"H . Peter Anvin" <hpa@zytor.com>
CC: <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
<linux-pm@vger.kernel.org>, <rafael@kernel.org>, <pavel@ucw.cz>,
<linux-perf-users@vger.kernel.org>, Ingo Molnar <mingo@redhat.com>,
"Arnaldo Carvalho de Melo" <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
"Mario Limonciello" <mario.limonciello@amd.com>
Subject: [PATCH 0/2] Fixes for s3 with parallel bootup
Date: Mon, 23 Oct 2023 11:00:16 -0500
Message-ID: <20231023160018.164054-1-mario.limonciello@amd.com>
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Fixes for s3 with parallel bootup
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Message
Mario Limonciello
Oct. 23, 2023, 4 p.m. UTC
Parallel bootup on systems that use x2apic broke suspend to ram. This series ensures x2apic is re-enabled at startup and fixes an exposed pre-emption issue. Mario Limonciello (2): x86: Enable x2apic during resume from suspend if used previously perf/x86/amd: Don't allow pre-emption in amd_pmu_lbr_reset() arch/x86/events/amd/lbr.c | 3 ++- arch/x86/include/asm/smp.h | 1 + arch/x86/kernel/acpi/sleep.c | 12 ++++++++---- arch/x86/kernel/head_64.S | 15 +++++++++++++++ 4 files changed, 26 insertions(+), 5 deletions(-)