On 2014-09-30 10:43, Paolo Bonzini wrote:
> Il 30/09/2014 09:54, Jan Kiszka ha scritto:
>>>> kvm_get_xtime_nsec could overflow. If we make kvm_get_boot_base_ns
>>>> compute the equivalent of 3.17's base_mono+offs_boot formula (instead of
>>>> just offs_boot), we can avoid that and drop kvm_get_xtime_nsec altogether.
>> Applied, thanks.
>>
>> Any suggestions how to deal with "kvm: Fix page ageing bugs"?
>
> If you mean the new MMU notifier API, probably something like this:
>
> diff --git a/sync b/sync
> index 8b63ca7..fff85f3 100755
> --- a/sync
> +++ b/sync
> @@ -310,6 +310,22 @@ def hack_content(fname, data):
> else:
> w(sub(r'tkr\.', '', line))
> line = '#endif'
> + if match_block_end('^static int kvm_mmu_notifier_clear_flush_young',
> '^}'):
> + w(line)
> + w('#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)')
> + w('static int kvm_mmu_notifier_clear_flush_young(struct
> mmu_notifier *mn,')
> + w(' struct
> mm_struct *mm,')
> + w(' unsigned long
> hva)')
> + w('{')
> + w('\treturn __kvm_mmu_notifier_clear_flush_young(mn, mm, hva,
> hva+1);')
Ah, end=start+1, it's that easy!
> + w('}')
> + line = '#endif'
> + if match(r'^static int kvm_mmu_notifier_clear_flush_young'):
> + w('#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)')
> + w(line)
> + w('#else')
> + w(sub('kvm_', '__kvm_', line))
> + line = '#endif'
> if line == '#ifdef CONFIG_KEXEC':
> line = '#if defined(CONFIG_KEXEC) && LINUX_VERSION_CODE >=
> KERNEL_VERSION(3,8,0)'
> if line == '\tif (!cpu_has_vmx_apicv())':
>
> (Not tested beyond compilation).
Will check.
Thanks,
Jan
--
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux
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