Commit 24bc1cbc7b1c774ba09b3517fba4a37293498a00
1 parent
6ada7453
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
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hw/acpi.c
... | ... | @@ -54,6 +54,9 @@ typedef struct PIIX4PMState { |
54 | 54 | |
55 | 55 | #define SUS_EN (1 << 13) |
56 | 56 | |
57 | +#define ACPI_ENABLE 0xf1 | |
58 | +#define ACPI_DISABLE 0xf0 | |
59 | + | |
57 | 60 | #define SMBHSTSTS 0x00 |
58 | 61 | #define SMBHSTCNT 0x02 |
59 | 62 | #define SMBHSTCMD 0x03 |
... | ... | @@ -216,6 +219,14 @@ static void pm_smi_writeb(void *opaque, uint32_t addr, uint32_t val) |
216 | 219 | #endif |
217 | 220 | if (addr == 0) { |
218 | 221 | s->apmc = val; |
222 | + | |
223 | + /* ACPI specs 3.0, 4.7.2.5 */ | |
224 | + if (val == ACPI_ENABLE) { | |
225 | + s->pmcntrl |= SCI_EN; | |
226 | + } else if (val == ACPI_DISABLE) { | |
227 | + s->pmcntrl &= ~SCI_EN; | |
228 | + } | |
229 | + | |
219 | 230 | if (s->dev.config[0x5b] & (1 << 1)) { |
220 | 231 | cpu_interrupt(first_cpu, CPU_INTERRUPT_SMI); |
221 | 232 | } | ... | ... |