diff options
| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/acpi/sleep.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/acpi/sleep.h')
| -rw-r--r-- | drivers/acpi/sleep.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h new file mode 100644 index 000000000..9c3cb109c --- /dev/null +++ b/drivers/acpi/sleep.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +extern void acpi_enable_wakeup_devices(u8 sleep_state); +extern void acpi_disable_wakeup_devices(u8 sleep_state); +extern bool acpi_check_wakeup_handlers(void); + +extern struct list_head acpi_wakeup_device_list; +extern struct mutex acpi_device_lock; + +extern void acpi_resume_power_resources(void); + +static inline acpi_status acpi_set_waking_vector(u32 wakeup_address) +{ + return acpi_set_firmware_waking_vector( + (acpi_physical_address)wakeup_address, 0); +} + +extern int acpi_s2idle_begin(void); +extern int acpi_s2idle_prepare(void); +extern bool acpi_s2idle_wake(void); +extern void acpi_s2idle_restore(void); +extern void acpi_s2idle_end(void); + +extern void acpi_s2idle_setup(void); + +#ifdef CONFIG_ACPI_SLEEP +extern bool acpi_sleep_default_s3; +#else +#define acpi_sleep_default_s3 (1) +#endif |