AArch64 EL2 hypervisor for QEMU virt that boots at EL2
Add syndrome taxonomy for lower EL exception attribution
author
vm.fail
date
(May 11, 2026, 4:42 PM UTC)
commit
1bb0138e
1bb0138eb9373a66d09eeb175f300a9892983f46
parent
30eb336b
30eb336bd9f18adac16aa8a10c64852c740749ea
vm.fail
date
(May 11, 2026, 4:42 PM UTC)
commit
1bb0138e
1bb0138eb9373a66d09eeb175f300a9892983f46
parent
30eb336b
30eb336bd9f18adac16aa8a10c64852c740749ea
+22
-1
+3
core/log.c
+3
core/log.c
···
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#include "hv/config.h"
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#include "hv/log.h"
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#include "hv/string.h"
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#include "hv/sysreg.h"
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#include "hv/timer.h"
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#include "hv/uart.h"
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···
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uart_puts(kind_name(ev->kind));
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uart_puts(" ec=");
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uart_put_hex64(ev->ec);
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uart_puts(" ecname=");
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uart_puts(esr_ec_name(ev->ec));
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uart_puts(" iss=");
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uart_put_hex64(ev->iss);
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uart_puts(" elr=");
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-1
core/sysreg.c
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core/sysreg.c
···
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#include "hv/sysreg.h"
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#include "hv/string.h"
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uint64_t sysreg_key_make(uint32_t op0, uint32_t op1, uint32_t crn, uint32_t crm, uint32_t op2)
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{
···
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return "unknown";
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}
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const char *esr_ec_name(uint32_t ec)
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{
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switch (ec) {
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case ESR_EC_UNKNOWN: return "unknown";
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case ESR_EC_WFI_WFE: return "wfi-wfe";
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case ESR_EC_HVC64: return "hvc64";
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case ESR_EC_SMC64: return "smc64";
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case ESR_EC_SYSREG: return "sysreg";
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case ESR_EC_IABT_LOWER: return "iabt-lower";
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case ESR_EC_DABT_LOWER: return "dabt-lower";
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case ESR_EC_BRK64: return "brk64";
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default: return "reserved";
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}
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}
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bool sysreg_selftest(void)
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{
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struct sysreg_access a;
···
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if (!sysreg_decode_from_esr_iss(iss, &a)) {
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return false;
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}
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return a.is_read && a.rt == 0u && a.key == KEY(3, 0, 0, 0, 0);
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return a.is_read && a.rt == 0u && a.key == KEY(3, 0, 0, 0, 0) &&
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hv_strcmp(esr_ec_name(ESR_EC_SYSREG), "sysreg") == 0;
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}
+1
include/hv/sysreg.h
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include/hv/sysreg.h
···
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uint64_t sysreg_key_make(uint32_t op0, uint32_t op1, uint32_t crn, uint32_t crm, uint32_t op2);
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bool sysreg_decode_from_esr_iss(uint64_t iss, struct sysreg_access *out);
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const char *sysreg_key_name(uint64_t key);
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const char *esr_ec_name(uint32_t ec);
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bool sysreg_selftest(void);
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#endif