Commit 24bc1cbc authored by ths's avatar ths
Browse files

Implement ACPI specs 3.0, 4.7.2.5, by Michael Hanselmann.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3103 c046a42c-6fe2-441c-8c8c-71466251a162
parent 6ada7453
......@@ -54,6 +54,9 @@ typedef struct PIIX4PMState {
#define SUS_EN (1 << 13)
#define ACPI_ENABLE 0xf1
#define ACPI_DISABLE 0xf0
#define SMBHSTSTS 0x00
#define SMBHSTCNT 0x02
#define SMBHSTCMD 0x03
......@@ -216,6 +219,14 @@ static void pm_smi_writeb(void *opaque, uint32_t addr, uint32_t val)
#endif
if (addr == 0) {
s->apmc = val;
/* ACPI specs 3.0, 4.7.2.5 */
if (val == ACPI_ENABLE) {
s->pmcntrl |= SCI_EN;
} else if (val == ACPI_DISABLE) {
s->pmcntrl &= ~SCI_EN;
}
if (s->dev.config[0x5b] & (1 << 1)) {
cpu_interrupt(first_cpu, CPU_INTERRUPT_SMI);
}
......
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