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authorIan Moffett <ian@osmora.org>2024-02-05 22:23:52 -0500
committerIan Moffett <ian@osmora.org>2024-02-05 22:24:08 -0500
commitefe1d129f69c0d5668f37fdf7c8b37c17bc6496f (patch)
tree833917623dcb90e183fc67b5a482f96fcc1d9dcb /sys/arch/amd64/amd64
parent0707815822121996af1968ef5622a0f957108587 (diff)
kernel/amd64: lapic: Fix icr_lo overflow bug
Somehow icr_lo was a uint8_t which is obviously not right and would cause overflow bugs. Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/arch/amd64/amd64')
-rw-r--r--sys/arch/amd64/amd64/lapic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/arch/amd64/amd64/lapic.c b/sys/arch/amd64/amd64/lapic.c
index c5760f5..c4e81a6 100644
--- a/sys/arch/amd64/amd64/lapic.c
+++ b/sys/arch/amd64/amd64/lapic.c
@@ -273,7 +273,7 @@ void
lapic_send_ipi(uint8_t id, uint8_t shorthand, uint8_t vector)
{
const uint32_t x2APIC_IPI_SELF = 0x3F0;
- uint8_t icr_lo = vector | IPI_DEST_PHYSICAL;
+ uint64_t icr_lo = vector | IPI_DEST_PHYSICAL;
bool x2apic_supported = has_x2apic();
if (x2apic_supported && shorthand == IPI_SHORTHAND_SELF) {