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authorNicholas Piggin <npiggin@gmail.com>2024-11-04 02:09:12 +1000
committerNicholas Piggin <npiggin@gmail.com>2024-11-04 09:14:10 +1000
commit07f2770503e24889720028ddf9ef54788ddf3b6d (patch)
treeae7f3ff1eb2f5f9900a2f16adca3a62bd8237094
parent889c5c4c7a32be298aa499a246dbfd0c5fea8a74 (diff)
ppc/xive: Fix ESB length overflow on 32-bit hosts
The length of this region can be > 32-bits, which overflows size_t on 32-bit hosts. Change to uint64_t. Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
-rw-r--r--hw/intc/spapr_xive_kvm.c4
-rw-r--r--hw/intc/xive.c2
-rw-r--r--include/hw/ppc/xive.h2
3 files changed, 4 insertions, 4 deletions
diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c
index 5789062379..7a86197fc9 100644
--- a/hw/intc/spapr_xive_kvm.c
+++ b/hw/intc/spapr_xive_kvm.c
@@ -720,7 +720,7 @@ int kvmppc_xive_connect(SpaprInterruptController *intc, uint32_t nr_servers,
{
SpaprXive *xive = SPAPR_XIVE(intc);
XiveSource *xsrc = &xive->source;
- size_t esb_len = xive_source_esb_len(xsrc);
+ uint64_t esb_len = xive_source_esb_len(xsrc);
size_t tima_len = 4ull << TM_SHIFT;
CPUState *cs;
int fd;
@@ -824,7 +824,7 @@ void kvmppc_xive_disconnect(SpaprInterruptController *intc)
{
SpaprXive *xive = SPAPR_XIVE(intc);
XiveSource *xsrc;
- size_t esb_len;
+ uint64_t esb_len;
assert(xive->fd != -1);
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 5a02dd8e02..b600546e78 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -1242,7 +1242,7 @@ static void xive_source_reset(void *dev)
static void xive_source_realize(DeviceState *dev, Error **errp)
{
XiveSource *xsrc = XIVE_SOURCE(dev);
- size_t esb_len = xive_source_esb_len(xsrc);
+ uint64_t esb_len = xive_source_esb_len(xsrc);
assert(xsrc->xive);
diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 28c181faa2..3a65c2f29a 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -218,7 +218,7 @@ static inline bool xive_source_esb_has_2page(XiveSource *xsrc)
xsrc->esb_shift == XIVE_ESB_4K_2PAGE;
}
-static inline size_t xive_source_esb_len(XiveSource *xsrc)
+static inline uint64_t xive_source_esb_len(XiveSource *xsrc)
{
return (1ull << xsrc->esb_shift) * xsrc->nr_irqs;
}