Merge tag 'hw-misc-20240716' of https://github.com/philmd/qemu into staging

Misc HW & UI patches queue

- Allow loading safely ROMs larger than 4GiB (Gregor)
- Convert vt82c686 IRQ as named 'intr' (Bernhard)
- Clarify QDev GPIO API (Peter)
- Drop unused load_image_gzipped function (Ani)
- Make TCGCPUOps::cpu_exec_interrupt handler mandatory (Peter)
- Factor cpu_pause() out (Nicholas)
- Remove transfer size check from ESP DMA DATA IN / OUT transfers (Mark)
- Add accelerated cursor composition to Cocoa UI (Akihiko)
- Fix '-vga help' CLI (Marc-André)
- Fix displayed errno in ram_block_add (Zhenzhong)

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* tag 'hw-misc-20240716' of https://github.com/philmd/qemu:
  system/physmem: use return value of ram_block_discard_require() as errno
  vl: fix "type is NULL" in -vga help
  ui/console: Remove dpy_cursor_define_supported()
  ui/cocoa: Add cursor composition
  ui/console: Convert mouse visibility parameter into bool
  ui/cocoa: Release CGColorSpace
  esp: remove transfer size check from DMA DATA IN and DATA OUT transfers
  system/cpus: Add cpu_pause() function
  accel/tcg: Make cpu_exec_interrupt hook mandatory
  loader: remove load_image_gzipped function as its not used anywhere
  include/hw/qdev-core.h: Correct and clarify gpio doc comments
  hw/isa/vt82c686: Turn "intr" irq into a named gpio
  hw/core/loader: allow loading larger ROMs

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 7 insertions, 38 deletions

diff --git a/hw/core/loader.c b/hw/core/loader.c
index a3bea1e718..31593a1171 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -845,19 +845,6 @@ ssize_t load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
     return ret;
 }
 
-/* Load a gzip-compressed kernel. */
-ssize_t load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
-{
-    ssize_t bytes;
-    uint8_t *data;
-
-    bytes = load_image_gzipped_buffer(filename, max_sz, &data);
-    if (bytes != -1) {
-        rom_add_blob_fixed(filename, data, bytes, addr);
-        g_free(data);
-    }
-    return bytes;
-}
 
 /* The PE/COFF MS-DOS stub magic number */
 #define EFI_PE_MSDOS_MAGIC        "MZ"
@@ -1076,8 +1063,8 @@ ssize_t rom_add_file(const char *file, const char *fw_dir,
 {
     MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
     Rom *rom;
-    ssize_t rc;
-    int fd = -1;
+    gsize size;
+    g_autoptr(GError) gerr = NULL;
     char devpath[100];
 
     if (as && mr) {
@@ -1095,10 +1082,10 @@ ssize_t rom_add_file(const char *file, const char *fw_dir,
         rom->path = g_strdup(file);
     }
 
-    fd = open(rom->path, O_RDONLY | O_BINARY);
-    if (fd == -1) {
-        fprintf(stderr, "Could not open option rom '%s': %s\n",
-                rom->path, strerror(errno));
+    if (!g_file_get_contents(rom->path, (gchar **) &rom->data,
+                             &size, &gerr)) {
+        fprintf(stderr, "rom: file %-20s: error %s\n",
+                rom->name, gerr->message);
         goto err;
     }
 
@@ -1107,23 +1094,8 @@ ssize_t rom_add_file(const char *file, const char *fw_dir,
         rom->fw_file = g_strdup(file);
     }
     rom->addr     = addr;
-    rom->romsize  = lseek(fd, 0, SEEK_END);
-    if (rom->romsize == -1) {
-        fprintf(stderr, "rom: file %-20s: get size error: %s\n",
-                rom->name, strerror(errno));
-        goto err;
-    }
-
+    rom->romsize  = size;
     rom->datasize = rom->romsize;
-    rom->data     = g_malloc0(rom->datasize);
-    lseek(fd, 0, SEEK_SET);
-    rc = read(fd, rom->data, rom->datasize);
-    if (rc != rom->datasize) {
-        fprintf(stderr, "rom: file %-20s: read error: rc=%zd (expected %zd)\n",
-                rom->name, rc, rom->datasize);
-        goto err;
-    }
-    close(fd);
     rom_insert(rom);
     if (rom->fw_file && fw_cfg) {
         const char *basename;
@@ -1160,9 +1132,6 @@ ssize_t rom_add_file(const char *file, const char *fw_dir,
     return 0;
 
 err:
-    if (fd != -1)
-        close(fd);
-
     rom_free(rom);
     return -1;
 }