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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-07 14:47:51 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-10-07 14:47:51 -0400 |
| commit | 6e6647c779708ab1a206c69ea31bdce97df22b8e (patch) | |
| tree | 37f5fb7493d8fd40ac37c5cb97adaebf830a58f9 /kernel/gsp_phys_booter.c | |
| parent | abb6b30b0d1020f30171f3e361a1591baed3676b (diff) | |
| download | open-iov-6e6647c779708ab1a206c69ea31bdce97df22b8e.tar.gz open-iov-6e6647c779708ab1a206c69ea31bdce97df22b8e.zip | |
vgsp: m103 - scan bank pointers at 4-byte strides; dump every bank page
m102 relocated the server-installed data windows (UPDATE_PDE_2 pdeIndex
2060.. accepted, status 0x0) and rewrote bank 0 (10 pointers) and bank 1
(1) - but the LDG's base in c[0x4][0x0] (bank 4) produced no hit: its
pointer sits at a 4-aligned offset that the 8-stride scan skipped. Scan
every 4-byte boundary and dump the first 16 words of every bank page
(2..7) for verification.
Diffstat (limited to 'kernel/gsp_phys_booter.c')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index 53932d4..8cc09e4 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -16164,12 +16164,14 @@ static void gsp_phys_gr_rewrite_data_vars(u32 *w, u32 n_words, if (!req->n_data_wins) return; - for (k = 0; k + 1 < n_words; k += 2) { + /* Scan every 4-byte boundary: the demo's bank-4 base pointer sits at + * a 4-aligned (not 8-aligned) offset, which an 8-stride scan misses. */ + for (k = 0; k + 1 < n_words; k++) { u64 v = (u64)w[k] | ((u64)w[k + 1] << 32); u64 wb; u32 x; - if (v < 0x10000000ULL || v >= (1ULL << 47) || (v & 7)) + if (v < 0x10000000ULL || v >= (1ULL << 47) || (v & 3)) continue; wb = v & ~0x1fffffULL; for (x = 0; x < req->n_data_wins; x++) { @@ -16574,6 +16576,16 @@ int gsp_phys_backend_guest_gr_submit(const struct gsp_phys_gr_submit *req, w[6], w[7], w[8], w[9], w[10], w[11], w[12], w[13], w[14], w[15]); } + if (pg->hpa && pg->qmd_word > 32u && pg->qmd_word <= 46u && + !(pg->qmd_word & 1)) { + const u32 *w = (const u32 *)sh_page; + + pr_info("vgsp-gr: bank%u page: %08x %08x %08x %08x %08x %08x %08x %08x | %08x %08x %08x %08x %08x %08x %08x %08x\n", + (pg->qmd_word - 32u) / 2u, + w[0], w[1], w[2], w[3], w[4], w[5], + w[6], w[7], w[8], w[9], w[10], w[11], + w[12], w[13], w[14], w[15]); + } for (j = 0; j < req->n_inl; j++) { const struct gsp_phys_gr_inline *inl = &req->inl[j]; |