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thermosphere: properly implement guest timer stuff

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This commit is contained in:
TuxSH
2020-01-12 21:51:50 +00:00
parent 3b542e749f
commit e5f6440c3f
12 changed files with 180 additions and 53 deletions
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19
thermosphere/src/initSystem.c
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@@ -26,17 +26,22 @@ extern const u32 __vectors_start__[];
static void initSysregs(void)
{
// Set VBAR
SET_SYSREG(vbar_el2, (uintptr_t)__vectors_start__);
SET_SYSREG(vbar_el2, (uintptr_t)__vectors_start__);
// Set system to sane defaults, aarch64 for el1, mmu&caches initially disabled for EL1, etc.
SET_SYSREG(hcr_el2, 0x80000000);
SET_SYSREG(dacr32_el2, 0xFFFFFFFF); // unused
SET_SYSREG(sctlr_el1, 0x00C50838);
SET_SYSREG(hcr_el2, 0x80000000);
SET_SYSREG(dacr32_el2, 0xFFFFFFFF); // unused
SET_SYSREG(sctlr_el1, 0x00C50838);
SET_SYSREG(mdcr_el2, 0x00000000);
SET_SYSREG(mdscr_el1, 0x00000000);
SET_SYSREG(mdcr_el2, 0x00000000);
SET_SYSREG(mdscr_el1, 0x00000000);
SET_SYSREG(cntvoff_el2, 0x00000000);
// Timer stuff
SET_SYSREG(cntvoff_el2, 0x00000000);
SET_SYSREG(cnthctl_el2, 0x00000003); // Don't trap anything for now; event streams disabled
SET_SYSREG(cntkctl_el1, 0x00000003); // Don't trap anything for now; event streams disabled
SET_SYSREG(cntp_ctl_el0, 0x00000000);
SET_SYSREG(cntv_ctl_el0, 0x00000000);
}
void initSystem(u32 coreId, bool isBootCore, u64 argument)