| Message ID | 20240212104448.2589568-3-kirill.shutemov@linux.intel.com |
|---|---|
| State | New |
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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
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"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv7 02/16] x86/apic: Mark acpi_mp_wake_* variables as
__ro_after_init
Date: Mon, 12 Feb 2024 12:44:34 +0200
Message-ID: <20240212104448.2589568-3-kirill.shutemov@linux.intel.com>
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| Series |
x86/tdx: Add kexec support
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Commit Message
Kirill A. Shutemov
Feb. 12, 2024, 10:44 a.m. UTC
acpi_mp_wake_mailbox_paddr and acpi_mp_wake_mailbox initialized once during ACPI MADT init and never changed. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Kai Huang <kai.huang@intel.com> --- arch/x86/kernel/acpi/madt_wakeup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Comments
On 02/12/24 at 12:44pm, Kirill A. Shutemov wrote: > acpi_mp_wake_mailbox_paddr and acpi_mp_wake_mailbox initialized once > during ACPI MADT init and never changed. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Acked-by: Kai Huang <kai.huang@intel.com> Reviewed-by: Baoquan He <bhe@redhat.com> > --- > arch/x86/kernel/acpi/madt_wakeup.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kernel/acpi/madt_wakeup.c b/arch/x86/kernel/acpi/madt_wakeup.c > index 7f164d38bd0b..cf79ea6f3007 100644 > --- a/arch/x86/kernel/acpi/madt_wakeup.c > +++ b/arch/x86/kernel/acpi/madt_wakeup.c > @@ -6,10 +6,10 @@ > #include <asm/processor.h> > > /* Physical address of the Multiprocessor Wakeup Structure mailbox */ > -static u64 acpi_mp_wake_mailbox_paddr; > +static u64 acpi_mp_wake_mailbox_paddr __ro_after_init; > > /* Virtual address of the Multiprocessor Wakeup Structure mailbox */ > -static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox; > +static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox __ro_after_init; > > static int acpi_wakeup_cpu(u32 apicid, unsigned long start_ip) > { > -- > 2.43.0 >
On Mon, Feb 12 2024 at 12:44, Kirill A. Shutemov wrote: > acpi_mp_wake_mailbox_paddr and acpi_mp_wake_mailbox initialized once > during ACPI MADT init and never changed. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Acked-by: Kai Huang <kai.huang@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/acpi/madt_wakeup.c b/arch/x86/kernel/acpi/madt_wakeup.c index 7f164d38bd0b..cf79ea6f3007 100644 --- a/arch/x86/kernel/acpi/madt_wakeup.c +++ b/arch/x86/kernel/acpi/madt_wakeup.c @@ -6,10 +6,10 @@ #include <asm/processor.h> /* Physical address of the Multiprocessor Wakeup Structure mailbox */ -static u64 acpi_mp_wake_mailbox_paddr; +static u64 acpi_mp_wake_mailbox_paddr __ro_after_init; /* Virtual address of the Multiprocessor Wakeup Structure mailbox */ -static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox; +static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox __ro_after_init; static int acpi_wakeup_cpu(u32 apicid, unsigned long start_ip) {