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SubjectRe: [Xen-devel] [PATCH v4 00/14] x86: remove paravirt_enabled
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On 07/04/16 02:06, Luis R. Rodriguez wrote:
> Now that Andy's ASM paravirt_enabled() use is merged all we need is to address
> the rest of the C code uses. This completes that work by providing proper
> semantics for platform legacy settings and quirks as suggested by Ingo, this in
> turn can also be extended later for benefit of further processing of ACPI
> 5.2.9.3 IA-PC Boot Architecture flags, which we currently don't take much
> advantage of. For instance the ACPI_FADT_NO_VGA can later be leveraged by bare
> metal x86 *and* HVMLite, as HVMLite seems to plan to set this.
>
> Also, hpa has noted both Intel MID and CE4100 can make use of disabling
> pnpbios, we can do that separately after this, but it should now be a
> trivial change, generic given this quirk stuff is all generic now.
>
> This patches goes tested by 0-day, except for the last patch, for some reason
> the branch that included that patch has had testing delayed for quite a
> while now, but I can't think of anything there that should break anything.
>
> I've also just run time tested this on bare metal only so far.

FWIW: Xen dom0 is booting with the patches applied.


Juergen

>
> Luis R. Rodriguez (14):
> x86/boot: enumerate documentation for the x86 hardware_subarch
> x86/xen: use X86_SUBARCH_XEN for PV guest boots
> tools/lguest: make lguest launcher use X86_SUBARCH_LGUEST explicitly
> x86/rtc: replace paravirt rtc check with platform legacy quirk
> x86, ACPI: move ACPI_FADT_NO_CMOS_RTC check to ACPI boot code
> x86/init: use a platform legacy quirk for ebda
> tools/lguest: force disable tboot and apm
> apm32: remove paravirt_enabled() use
> x86/tboot: remove paravirt_enabled()
> x86/cpu/intel: remove not needed paravirt_enabled() for f00f work
> around
> pnpbios: replace paravirt_enabled() check with legacy device check
> x86, ACPI: parse ACPI_FADT_LEGACY_DEVICES
> x86/init: rename ebda code file
> x86/paravirt: remove paravirt_enabled()
>
> arch/x86/Makefile | 3 ++-
> arch/x86/include/asm/paravirt.h | 11 ---------
> arch/x86/include/asm/paravirt_types.h | 6 -----
> arch/x86/include/asm/processor.h | 2 --
> arch/x86/include/asm/x86_init.h | 42 +++++++++++++++++++++++++++++++++++
> arch/x86/include/uapi/asm/bootparam.h | 36 +++++++++++++++++++++++++++++-
> arch/x86/kernel/Makefile | 6 ++++-
> arch/x86/kernel/acpi/boot.c | 9 ++++++++
> arch/x86/kernel/apm_32.c | 2 +-
> arch/x86/kernel/cpu/intel.c | 2 +-
> arch/x86/kernel/{head.c => ebda.c} | 2 +-
> arch/x86/kernel/head32.c | 2 ++
> arch/x86/kernel/head64.c | 1 +
> arch/x86/kernel/kvm.c | 8 -------
> arch/x86/kernel/paravirt.c | 1 -
> arch/x86/kernel/platform-quirks.c | 32 ++++++++++++++++++++++++++
> arch/x86/kernel/rtc.c | 15 ++-----------
> arch/x86/kernel/tboot.c | 6 -----
> arch/x86/lguest/boot.c | 3 ---
> arch/x86/xen/enlighten.c | 5 +----
> drivers/pnp/pnpbios/core.c | 3 ++-
> include/linux/pnp.h | 2 ++
> tools/lguest/lguest.c | 10 +++++++--
> 23 files changed, 146 insertions(+), 63 deletions(-)
> rename arch/x86/kernel/{head.c => ebda.c} (98%)
> create mode 100644 arch/x86/kernel/platform-quirks.c
>

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