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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 388c245ce4
commit 68a1ce6dd2
12 changed files with 180 additions and 53 deletions
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41
thermosphere/src/main.c
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@@ -38,13 +38,50 @@ static void loadKernelViaSemihosting(void)
currentCoreCtx->kernelEntrypoint = buf;
}
void thermosphereMain(ExceptionStackFrame *frame)
#include "platform/uart.h"
typedef struct TestCtx {
char buf[512+1];
} TestCtx;
static TestCtx g_testCtx;
size_t testReceiveCallback(TransportInterface *iface, void *p)
{
TestCtx *ctx = (TestCtx *)p;
return transportInterfaceReadDataUntil(iface, ctx->buf, 512, '\r');
}
void testProcessDataCallback(TransportInterface *iface, void *p, size_t sz)
{
(void)iface;
(void)sz;
TestCtx *ctx = (TestCtx *)p;
DEBUG("EL2 [core %u]: you typed: %s\n", currentCoreCtx->coreId, ctx->buf);
}
void test(void)
{
TransportInterface *iface = transportInterfaceCreate(
TRANSPORT_INTERFACE_TYPE_UART,
DEFAULT_UART,
DEFAULT_UART_FLAGS,
testReceiveCallback,
testProcessDataCallback,
&g_testCtx
);
transportInterfaceSetInterruptAffinity(iface, BIT(0));
}
void thermosphereMain(ExceptionStackFrame *frame, u64 pct)
{
initIrq();
if (currentCoreCtx->isBootCore) {
transportInterfaceInitLayer();
debugLogInit();
test();
DEBUG("EL2: core %u reached main first!\n", currentCoreCtx->coreId);
}
@@ -75,5 +112,5 @@ void thermosphereMain(ExceptionStackFrame *frame)
frame->spsr_el2 = (0xF << 6) | (1 << 2) | 1; // EL1h+DAIF
frame->elr_el2 = currentCoreCtx->kernelEntrypoint;
frame->x[0] = currentCoreCtx->kernelArgument;
frame->cntvct_el0 = GET_SYSREG(cntvct_el0);
frame->cntpct_el0 = pct;
}