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ohhhhhhhhhhh (exclude linux-extra-rootfs.img build artifact)

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Linehu
2026-10-01 23:13:42 +08:00
parent 737a2cb0db
commit 1074962546
533 changed files with 133239 additions and 5460 deletions
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CODE/UTSM/vmm/hypercall.c
+20 -5
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@@ -46,10 +46,16 @@ static void *gpa_to_hva(u64 gpa) {
return (void *)(hhdm + hpa);
}
static void *guest_ptr_to_hva(u64 guest_ptr) {
u64 gpa = vmx_guest_gva_to_gpa(guest_ptr);
if (gpa == 0) gpa = guest_ptr;
return gpa_to_hva(gpa);
}
/* Write a u64 to guest memory at the given GPA.
* Returns 0 on success, -1 on failure. */
static int guest_write_u64(u64 gpa, u64 value) {
void *hva = gpa_to_hva(gpa);
void *hva = guest_ptr_to_hva(gpa);
if (!hva) return -1;
*(volatile u64 *)hva = value;
return 0;
@@ -58,14 +64,14 @@ static int guest_write_u64(u64 gpa, u64 value) {
/* Copy bytes from guest memory (GVA=GPA) to host buffer.
* Handles cross-page boundaries by translating each page separately.
* Returns 0 on success, -1 on failure. */
static int guest_read_buf(u64 gpa, void *host_dst, u64 len) {
static int guest_read_buf(u64 gva, void *host_dst, u64 len) {
u8 *dst = (u8 *)host_dst;
u64 copied = 0;
while (copied < len) {
void *hva = gpa_to_hva(gpa + copied);
void *hva = guest_ptr_to_hva(gva + copied);
if (!hva) return -1;
u64 page_end = (gpa + copied + 4096) & ~0xFFFULL;
u64 chunk = page_end - (gpa + copied);
u64 page_off = (gva + copied) & 0xFFFULL;
u64 chunk = 4096 - page_off;
if (chunk > len - copied) chunk = len - copied;
const u8 *src = (const u8 *)hva;
for (u64 i = 0; i < chunk; i++) {
@@ -111,6 +117,8 @@ static long hcall_shm_info(u64 a0, u64 a1, u64 a2) {
/* Write results to guest memory */
if (a0 != 0 && guest_write_u64(a0, shm_gpa) != 0) {
log_error("[HCALL] SHM_INFO: failed to write gpa to guest");
log_hex64("[HCALL] SHM_INFO: a0=", a0);
log_hex64("[HCALL] SHM_INFO: walk=", vmx_guest_gva_to_gpa(a0));
return UTSM_HCALL_INVAL;
}
if (a1 != 0 && guest_write_u64(a1, shm_size) != 0) {
@@ -311,6 +319,13 @@ int hypercall_handle(u64 guest_rax, u64 guest_rdi, u64 guest_rsi, u64 guest_rdx,
case UTSM_HCALL_HELLO:
result = hcall_hello(guest_rdi, guest_rsi, guest_rdx);
break;
case UTSM_HCALL_PARK:
/* Daemon park: return to DSK. Idle HLT must not use this path. */
g_guest_regs.rax = (u64)UTSM_HCALL_OK;
vmx_vmcs_write(VMCS_GUEST_RIP, guest_rip + instr_len);
g_guest_parked = 1;
log_info("[HCALL] PARK - Linux guest parked");
return 0;
case UTSM_HCALL_SHM_INFO:
result = hcall_shm_info(guest_rdi, guest_rsi, guest_rdx);
break;