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| author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-08-30 16:41:57 +0100 |
|---|---|---|
| committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-08-30 16:41:57 +0100 |
| commit | af6a326c1a6911fb9ef1e56de1912b1b2e1c4e53 (patch) | |
| tree | a3d376294626ec867fcebf641a0ee4fbf8a17fd0 /tools | |
| parent | c1d183f3dd0c697b39ab83c84d1fc2ac36ec5256 (diff) | |
| download | xen-af6a326c1a6911fb9ef1e56de1912b1b2e1c4e53.tar.gz xen-af6a326c1a6911fb9ef1e56de1912b1b2e1c4e53.tar.bz2 xen-af6a326c1a6911fb9ef1e56de1912b1b2e1c4e53.zip | |
qemu: Allow more IDE power management.
Made the QEMU IDE disk tolerate more power-mgmt commands, specifically:
WIN_SETFEATURE(EN_AAM) - enable automatic acoustic mgmt
WIN_SETFEATURE(DIS_AAM) - disable automatic acoustic mgmt
WIN_SETFEATURE(DIS_APM) - disable automatic power mgmt
WIN_STANDBY
WIN_SETIDLE1
WIN_SLEEPNOW1
WIN_STANDBY2
WIN_SETIDLE2
WIN_SLEEPNOW2
WIN_STANDBYNOW2
These are all essentially no-ops, like existing support for EN_RLA
(enable read lookahead) and WIN_STANDBYNOW1.
This fixes a crash in the SLES9-SP3 64bit kernel when the powersaved
was started (with ACPI or ACM). This guest really only needs EN_AAM,
DIS_APM, and WIN_SETIDLE1 support, but the others seemed sensible to
include.
I've excluded EN_APM since I'm unsure of what that's agreeing to do.
It's probably ok to include.
Signed-off-by: Ben Guthro <bguthro@virtualiron.com>
Signed-off-by: David Lively <dlively@virtualiron.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/ioemu/hw/ide.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/ioemu/hw/ide.c b/tools/ioemu/hw/ide.c index 3b138c76e4..f5e796171f 100644 --- a/tools/ioemu/hw/ide.c +++ b/tools/ioemu/hw/ide.c @@ -1876,6 +1876,9 @@ static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) break; case 0xaa: /* read look-ahead enable */ case 0x55: /* read look-ahead disable */ + case 0x42: /* EN_AAM: enable Automatic Acoustic Mode */ + case 0xc2: /* DIS_AAM: disable Automatic Acoustic Mode */ + case 0x85: /* DIS_APM: disable APM */ s->status = READY_STAT | SEEK_STAT; ide_set_irq(s); break; @@ -1914,8 +1917,15 @@ static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) s->status = READY_STAT; ide_set_irq(s); break; - case WIN_STANDBYNOW1: case WIN_IDLEIMMEDIATE: + case WIN_STANDBY: + case WIN_SETIDLE1: + case WIN_STANDBYNOW1: + case WIN_SLEEPNOW1: + case WIN_STANDBY2: + case WIN_SETIDLE2: + case WIN_STANDBYNOW2: + case WIN_SLEEPNOW2: s->status = READY_STAT; ide_set_irq(s); break; |