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Revert "arm64/arm: xen: enlighten: Fix KPTI checks"

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This reverts commit 666a4120dc which is
commit 20f3b8eafe0ba5d3c69d5011a9b07739e9645132 upstream.

It breaks the Android ABI and we do not care about Xen on Android, so it
is safe to revert.

Bug: 161946584
Change-Id: I4bf8a87650256a5f4b2faee626557604631ee286
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2023-11-29 14:26:31 +00:00
committed by Matthias Männich
parent c02da4e692
commit 8f05c3a256
2 changed files with 9 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
arch/arm/xen/enlighten.c
View File

@@ -159,6 +159,9 @@ static int xen_starting_cpu(unsigned int cpu)
BUG_ON(err);
per_cpu(xen_vcpu, cpu) = vcpup;
if (!xen_kernel_unmapped_at_usr())
xen_setup_runstate_info(cpu);
after_register_vcpu_info:
enable_percpu_irq(xen_events_irq, 0);
return 0;
@@ -391,6 +394,9 @@ static int __init xen_guest_init(void)
return -EINVAL;
}
if (!xen_kernel_unmapped_at_usr())
xen_time_setup_guest();
if (xen_initial_domain())
pvclock_gtod_register_notifier(&xen_pvclock_gtod_notifier);
@@ -400,13 +406,7 @@ static int __init xen_guest_init(void)
}
early_initcall(xen_guest_init);
static int xen_starting_runstate_cpu(unsigned int cpu)
{
xen_setup_runstate_info(cpu);
return 0;
}
static int __init xen_late_init(void)
static int __init xen_pm_init(void)
{
if (!xen_domain())
return -ENODEV;
@@ -419,16 +419,9 @@ static int __init xen_late_init(void)
do_settimeofday64(&ts);
}
if (xen_kernel_unmapped_at_usr())
return 0;
xen_time_setup_guest();
return cpuhp_setup_state(CPUHP_AP_ARM_XEN_RUNSTATE_STARTING,
"arm/xen_runstate:starting",
xen_starting_runstate_cpu, NULL);
return 0;
}
late_initcall(xen_late_init);
late_initcall(xen_pm_init);
/* empty stubs */

1
include/linux/cpuhotplug.h
View File

@@ -144,7 +144,6 @@ enum cpuhp_state {
/* Must be the last timer callback */
CPUHP_AP_DUMMY_TIMER_STARTING,
CPUHP_AP_ARM_XEN_STARTING,
CPUHP_AP_ARM_XEN_RUNSTATE_STARTING,
CPUHP_AP_ARM_CORESIGHT_STARTING,
CPUHP_AP_ARM_CORESIGHT_CTI_STARTING,
CPUHP_AP_ARM64_ISNDEP_STARTING,