Release 4.18 arch/x86/xen/suspend.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/tick.h>
#include <linux/percpu-defs.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
#include <xen/grant_table.h>
#include <xen/events.h>
#include <asm/cpufeatures.h>
#include <asm/msr-index.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/page.h>
#include <asm/fixmap.h>
#include "xen-ops.h"
#include "mmu.h"
#include "pmu.h"
static DEFINE_PER_CPU(u64, spec_ctrl);
void xen_arch_pre_suspend(void)
{
xen_save_time_memory_area();
if (xen_pv_domain())
xen_pv_pre_suspend();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 15 | 83.33% | 1 | 50.00% |
| Joao Martins | 3 | 16.67% | 1 | 50.00% |
| Total | 18 | 100.00% | 2 | 100.00% |
void xen_arch_post_suspend(int cancelled)
{
if (xen_pv_domain())
xen_pv_post_suspend(cancelled);
else
xen_hvm_post_suspend(cancelled);
xen_restore_time_memory_area();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Vrabel | 23 | 85.19% | 1 | 33.33% |
| Joao Martins | 3 | 11.11% | 1 | 33.33% |
| Jeremy Fitzhardinge | 1 | 3.70% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
static void xen_vcpu_notify_restore(void *data)
{
if (xen_pv_domain() && boot_cpu_has(X86_FEATURE_SPEC_CTRL))
wrmsrl(MSR_IA32_SPEC_CTRL, this_cpu_read(spec_ctrl));
/* Boot processor notified via generic timekeeping_resume() */
if (smp_processor_id() == 0)
return;
tick_resume_local();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ian Campbell | 20 | 47.62% | 1 | 25.00% |
| Juergen Gross | 20 | 47.62% | 1 | 25.00% |
| Thomas Gleixner | 2 | 4.76% | 2 | 50.00% |
| Total | 42 | 100.00% | 4 | 100.00% |
static void xen_vcpu_notify_suspend(void *data)
{
u64 tmp;
tick_suspend_local();
if (xen_pv_domain() && boot_cpu_has(X86_FEATURE_SPEC_CTRL)) {
rdmsrl(MSR_IA32_SPEC_CTRL, tmp);
this_cpu_write(spec_ctrl, tmp);
wrmsrl(MSR_IA32_SPEC_CTRL, 0);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Juergen Gross | 36 | 73.47% | 1 | 50.00% |
| Boris Ostrovsky | 13 | 26.53% | 1 | 50.00% |
| Total | 49 | 100.00% | 2 | 100.00% |
void xen_arch_resume(void)
{
int cpu;
on_each_cpu(xen_vcpu_notify_restore, NULL, 1);
for_each_online_cpu(cpu)
xen_pmu_init(cpu);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Boris Ostrovsky | 12 | 42.86% | 1 | 20.00% |
| Ian Campbell | 8 | 28.57% | 2 | 40.00% |
| Isaku Yamahata | 7 | 25.00% | 1 | 20.00% |
| Thomas Gleixner | 1 | 3.57% | 1 | 20.00% |
| Total | 28 | 100.00% | 5 | 100.00% |
void xen_arch_suspend(void)
{
int cpu;
for_each_online_cpu(cpu)
xen_pmu_finish(cpu);
on_each_cpu(xen_vcpu_notify_suspend, NULL, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Boris Ostrovsky | 28 | 100.00% | 2 | 100.00% |
| Total | 28 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Juergen Gross | 73 | 29.67% | 1 | 6.25% |
| Boris Ostrovsky | 56 | 22.76% | 3 | 18.75% |
| David Vrabel | 38 | 15.45% | 1 | 6.25% |
| Ian Campbell | 30 | 12.20% | 2 | 12.50% |
| Jeremy Fitzhardinge | 25 | 10.16% | 2 | 12.50% |
| Isaku Yamahata | 7 | 2.85% | 1 | 6.25% |
| Joao Martins | 6 | 2.44% | 1 | 6.25% |
| Thomas Gleixner | 4 | 1.63% | 2 | 12.50% |
| Andrew Morton | 3 | 1.22% | 1 | 6.25% |
| Ingo Molnar | 3 | 1.22% | 1 | 6.25% |
| Greg Kroah-Hartman | 1 | 0.41% | 1 | 6.25% |
| Total | 246 | 100.00% | 16 | 100.00% |
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