Franscobec/gddr6
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Safety: mmap changed to PROT_READ, open to O_RDONLY.

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This commit is contained in:
Marcin Gomułkiewicz
2024-02-11 19:18:08 +01:00
parent 67437ec951
commit 334d6b71aa
1 changed files with 2 additions and 2 deletions
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4
gddr6.c
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@@ -163,7 +163,7 @@ int main(int argc, char **argv)
device->arch, device->dev_id, device->bus, device->dev, device->func);
}
if ((fd = open(MEM, O_RDWR | O_SYNC)) == -1)
if ((fd = open(MEM, O_RDONLY)) == -1)
{
printf("Can't read memory. If you are root, enable kernel parameter iomem=relaxed\n");
PRINT_ERROR();
@@ -180,7 +180,7 @@ int main(int argc, char **argv)
phys_addr = (device->bar0 + device->offset);
base_offset = phys_addr & ~(PG_SZ-1);
map_base = mmap(0, PG_SZ, PROT_READ | PROT_WRITE, MAP_SHARED, fd, base_offset);
map_base = mmap(0, PG_SZ, PROT_READ, MAP_SHARED, fd, base_offset);
if(map_base == (void *) -1)
{