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authorRichard Henderson <richard.henderson@linaro.org>2024-04-30 09:57:47 -0700
committerRichard Henderson <richard.henderson@linaro.org>2024-04-30 09:57:47 -0700
commitb1e880789bc7dc07617e45e2d63d635cdbf2bf6d (patch)
tree15c0f096db9272b737769949ecee9fe2c0a40537 /hw/misc/edu.c
parentde7e907d011cf12805b80150a81470ff7c8b5d44 (diff)
parentcc6cb422e09592158586279fddeef107df05ecbb (diff)
downloadfocaccia-qemu-b1e880789bc7dc07617e45e2d63d635cdbf2bf6d.tar.gz
focaccia-qemu-b1e880789bc7dc07617e45e2d63d635cdbf2bf6d.zip
Merge tag 'pull-request-2024-04-30' of https://gitlab.com/thuth/qemu into staging
* Clean-ups for "errp" handling in s390x cpu_model code
* Fix a possible abort in the "edu" device
* Add missing qga stubs for stand-alone qga builds and re-enable qga-ssh-test
* Fix memory corruption caused by the stm32l4x5 uart device
* Update the s390x custom runner to Ubuntu 22.04
* Fix READ NATIVE MAX ADDRESS IDE commands to avoid a possible crash
* Shorten the runtime of Cirrus-CI jobs

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# gpg: Signature made Tue 30 Apr 2024 12:11:31 AM PDT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]

* tag 'pull-request-2024-04-30' of https://gitlab.com/thuth/qemu:
  .gitlab-ci.d/cirrus: Remove the netbsd and openbsd jobs
  .gitlab-ci.d/cirrus.yml: Shorten the runtime of the macOS and FreeBSD jobs
  tests/qtest/ide-test: Verify READ NATIVE MAX ADDRESS is not limited
  hw/ide/core.c (cmd_read_native_max): Avoid limited device parameters
  gitlab: remove stale s390x-all-linux-static conf hacks
  gitlab: migrate the s390x custom machine to 22.04
  build-environment: make some packages optional
  hw/char/stm32l4x5_usart: Fix memory corruption by adding correct class_size
  qga: Re-enable the qga-ssh-test when running without fuzzing
  stubs: Add missing qga stubs
  hw: misc: edu: use qemu_log_mask instead of hw_error
  hw: misc: edu: rename local vars in edu_check_range
  hw: misc: edu: fix 2 off-by-one errors
  target/s390x/cpu_models_sysemu: Drop local @err in apply_cpu_model()
  target/s390x/cpu_models: Make kvm_s390_apply_cpu_model() return boolean
  target/s390x/cpu_models: Drop local @err in get_max_cpu_model()
  target/s390x/cpu_models: Make kvm_s390_get_host_cpu_model() return boolean
  target/s390x/cpu_model: Drop local @err in s390_realize_cpu_model()
  target/s390x/cpu_model: Make check_compatibility() return boolean

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'hw/misc/edu.c')
-rw-r--r--hw/misc/edu.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index 2a976ca2b1..fa052c44db 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -23,6 +23,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qemu/units.h"
 #include "hw/pci/pci.h"
 #include "hw/hw.h"
@@ -103,25 +104,25 @@ static void edu_lower_irq(EduState *edu, uint32_t val)
     }
 }
 
-static bool within(uint64_t addr, uint64_t start, uint64_t end)
+static void edu_check_range(uint64_t xfer_start, uint64_t xfer_size,
+                uint64_t dma_start, uint64_t dma_size)
 {
-    return start <= addr && addr < end;
-}
-
-static void edu_check_range(uint64_t addr, uint64_t size1, uint64_t start,
-                uint64_t size2)
-{
-    uint64_t end1 = addr + size1;
-    uint64_t end2 = start + size2;
-
-    if (within(addr, start, end2) &&
-            end1 > addr && end1 <= end2) {
+    uint64_t xfer_end = xfer_start + xfer_size;
+    uint64_t dma_end = dma_start + dma_size;
+
+    /*
+     * 1. ensure we aren't overflowing
+     * 2. ensure that xfer is within dma address range
+     */
+    if (dma_end >= dma_start && xfer_end >= xfer_start &&
+        xfer_start >= dma_start && xfer_end <= dma_end) {
         return;
     }
 
-    hw_error("EDU: DMA range 0x%016"PRIx64"-0x%016"PRIx64
-             " out of bounds (0x%016"PRIx64"-0x%016"PRIx64")!",
-            addr, end1 - 1, start, end2 - 1);
+    qemu_log_mask(LOG_GUEST_ERROR,
+                  "EDU: DMA range 0x%016"PRIx64"-0x%016"PRIx64
+                  " out of bounds (0x%016"PRIx64"-0x%016"PRIx64")!",
+                  xfer_start, xfer_end - 1, dma_start, dma_end - 1);
 }
 
 static dma_addr_t edu_clamp_addr(const EduState *edu, dma_addr_t addr)
@@ -129,7 +130,9 @@ static dma_addr_t edu_clamp_addr(const EduState *edu, dma_addr_t addr)
     dma_addr_t res = addr & edu->dma_mask;
 
     if (addr != res) {
-        printf("EDU: clamping DMA %#.16"PRIx64" to %#.16"PRIx64"!\n", addr, res);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "EDU: clamping DMA 0x%016"PRIx64" to 0x%016"PRIx64"!",
+                      addr, res);
     }
 
     return res;