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Re: [Qemu-devel] [PATCH v3 23/52] pc: acpi-build: drop unsupported PM1b_
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [PATCH v3 23/52] pc: acpi-build: drop unsupported PM1b_CNT.SLP_TYP |
Date: |
Wed, 18 Feb 2015 11:03:47 +0100 |
On Tue, 17 Feb 2015 17:41:03 +0100
"Michael S. Tsirkin" <address@hidden> wrote:
> On Mon, Feb 09, 2015 at 10:53:45AM +0000, Igor Mammedov wrote:
> > QEMU doesn't implement/advertize PM1b_CNT_BLK
> > register block so do not set/patch its \_Sx
> > values to avoid confusion.
> >
> > Signed-off-by: Igor Mammedov <address@hidden>
>
> I doubt guests are confused.
They just happen to ignore it, it doesn't mean that it's correct
> I think you mean this confuses you, but I'd rather stay
> bug for bug compatible with what we did historically.
> We probably should add a comment saying this is here
> for historical reasons, but let's get your patchset
> merged first, it's too big as is.
I don't see point in being bug compatible in this case.
>
>
> > ---
> > hw/i386/acpi-build.c | 3 +--
> > hw/i386/ssdt-misc.dsl | 4 ++--
> > 2 files changed, 3 insertions(+), 4 deletions(-)
> >
> > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> > index b6626f5..7cc564a 100644
> > --- a/hw/i386/acpi-build.c
> > +++ b/hw/i386/acpi-build.c
> > @@ -781,8 +781,7 @@ build_ssdt(Aml *table_data,
> > if (pm->s4_disabled) {
> > ssdt_ptr[acpi_s4_name[0]] = 'X';
> > } else {
> > - ssdt_ptr[acpi_s4_pkg[0] + 1] = ssdt_ptr[acpi_s4_pkg[0] + 3] =
> > - pm->s4_val;
> > + ssdt_ptr[acpi_s4_pkg[0] + 1] = pm->s4_val;
> > }
> >
> > patch_pci_windows(pci, ssdt_ptr, sizeof(ssdp_misc_aml));
> > diff --git a/hw/i386/ssdt-misc.dsl b/hw/i386/ssdt-misc.dsl
> > index 1e3baae..96382a6 100644
> > --- a/hw/i386/ssdt-misc.dsl
> > +++ b/hw/i386/ssdt-misc.dsl
> > @@ -54,7 +54,7 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC",
> > "BXSSDTSUSP", 0x1)
> > ACPI_EXTRACT_NAME_STRING acpi_s3_name
> > Name(_S3, Package(0x04) {
> > One, /* PM1a_CNT.SLP_TYP */
> > - One, /* PM1b_CNT.SLP_TYP */
> > + Zero, /* PM1b_CNT.SLP_TYP, QEMU doesn't provide it */
> > Zero, /* reserved */
> > Zero /* reserved */
> > })
> > @@ -62,7 +62,7 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC",
> > "BXSSDTSUSP", 0x1)
> > ACPI_EXTRACT_PKG_START acpi_s4_pkg
> > Name(_S4, Package(0x04) {
> > 0x2, /* PM1a_CNT.SLP_TYP */
> > - 0x2, /* PM1b_CNT.SLP_TYP */
> > + Zero, /* PM1b_CNT.SLP_TYP, QEMU doesn't provide it */
> > Zero, /* reserved */
> > Zero /* reserved */
> > })
> > --
> > 1.8.3.1
[Qemu-devel] [PATCH v3 25/52] acpi: add aml_buffer() term, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 28/52] acpi: include PkgLength size only when requested, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 24/52] pc: acpi-build: generate _S[345] packages dynamically, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 30/52] acpi: add aml_field() & aml_named_field() terms, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 27/52] acpi: add aml_io() helper, Igor Mammedov, 2015/02/09
[Qemu-devel] [PATCH v3 31/52] acpi: add aml_local() term, Igor Mammedov, 2015/02/09