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Add HPET emulation to qemu (Beth Kon)

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This patch adds HPET emulation.  It can be disabled with -disable-hpet.  An hpet
provides a more finely granular clocksource than otherwise available on PC.
This means that latency-dependent applications (e.g. multimedia) will generally
be smoother when using the HPET.

Signed-off-by: Beth Kon <eak@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6081 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-12-17 23:28:44 +00:00
parent 0bacd1300d
commit 16b29ae180
13 changed files with 938 additions and 6 deletions
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3
hw/pc.h
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@ -97,6 +97,9 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
void piix4_smbus_register_device(SMBusDevice *dev, uint8_t addr);
void acpi_bios_init(void);
/* hpet.c */
extern int no_hpet;
/* pcspk.c */
void pcspk_init(PITState *);
int pcspk_audio_init(AudioState *, qemu_irq *pic);