diff mbox series

[09/12] dma: Let load/store DMA functions take MemTxAttrs argument

Message ID 20200903110831.353476-10-philmd@redhat.com (mailing list archive)
State New, archived
Headers show
Series hw: Forbid DMA write accesses to MMIO regions | expand

Commit Message

Philippe Mathieu-Daudé Sept. 3, 2020, 11:08 a.m. UTC 
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 include/hw/pci/pci.h       |  6 ++++--
 include/hw/ppc/spapr_vio.h | 15 ++++++++++-----
 include/sysemu/dma.h       | 20 ++++++++++++--------
 hw/intc/pnv_xive.c         |  7 ++++---
 hw/nvram/fw_cfg.c          |  4 ++--
 5 files changed, 32 insertions(+), 20 deletions(-)
diff mbox series

Patch

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index a221dfb3b08..8f901e6c289 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -808,12 +808,14 @@  static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
     static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev,      \
                                                    dma_addr_t addr)     \
     {                                                                   \
-        return ld##_l##_dma(pci_get_address_space(dev), addr);          \
+        return ld##_l##_dma(pci_get_address_space(dev), addr,           \
+                            MEMTXATTRS_UNSPECIFIED);                    \
     }                                                                   \
     static inline void st##_s##_pci_dma(PCIDevice *dev,                 \
                                         dma_addr_t addr, uint##_bits##_t val) \
     {                                                                   \
-        st##_s##_dma(pci_get_address_space(dev), addr, val);            \
+        st##_s##_dma(pci_get_address_space(dev), addr, val,             \
+                     MEMTXATTRS_UNSPECIFIED);                           \
     }
 
 PCI_DMA_DEFINE_LDST(ub, b, 8);
diff --git a/include/hw/ppc/spapr_vio.h b/include/hw/ppc/spapr_vio.h
index 8168f4fc5a5..e4db1aa7662 100644
--- a/include/hw/ppc/spapr_vio.h
+++ b/include/hw/ppc/spapr_vio.h
@@ -123,11 +123,16 @@  static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr,
         H_DEST_PARM : H_SUCCESS;
 }
 
-#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
-#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
-#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
-#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
-#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
+#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val), \
+                                            MEMTXATTRS_UNSPECIFIED))
+#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val), \
+                                               MEMTXATTRS_UNSPECIFIED))
+#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val), \
+                                               MEMTXATTRS_UNSPECIFIED))
+#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val), \
+                                               MEMTXATTRS_UNSPECIFIED))
+#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr), \
+                                         MEMTXATTRS_UNSPECIFIED))
 
 int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq);
 
diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h
index 9d0e145d76f..8a7dbf0b0f3 100644
--- a/include/sysemu/dma.h
+++ b/include/sysemu/dma.h
@@ -155,31 +155,35 @@  static inline void dma_memory_unmap(AddressSpace *as,
 
 #define DEFINE_LDST_DMA(_lname, _sname, _bits, _end) \
     static inline uint##_bits##_t ld##_lname##_##_end##_dma(AddressSpace *as, \
-                                                            dma_addr_t addr) \
+                                                            dma_addr_t addr, \
+                                                            MemTxAttrs attrs) \
     {                                                                   \
         uint##_bits##_t val;                                            \
-        dma_memory_read(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \
+        dma_memory_read(as, addr, &val, (_bits) / 8, attrs);            \
         return _end##_bits##_to_cpu(val);                               \
     }                                                                   \
     static inline void st##_sname##_##_end##_dma(AddressSpace *as,      \
                                                  dma_addr_t addr,       \
-                                                 uint##_bits##_t val)   \
+                                                 uint##_bits##_t val,   \
+                                                 MemTxAttrs attrs)      \
     {                                                                   \
         val = cpu_to_##_end##_bits(val);                                \
-        dma_memory_write(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \
+        dma_memory_write(as, addr, &val, (_bits) / 8, attrs);           \
     }
 
-static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr)
+static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr,
+                               MemTxAttrs attrs)
 {
     uint8_t val;
 
-    dma_memory_read(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED);
+    dma_memory_read(as, addr, &val, 1, attrs);
     return val;
 }
 
-static inline void stb_dma(AddressSpace *as, dma_addr_t addr, uint8_t val)
+static inline void stb_dma(AddressSpace *as, dma_addr_t addr, uint8_t val,
+                           MemTxAttrs attrs)
 {
-    dma_memory_write(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED);
+    dma_memory_write(as, addr, &val, 1, attrs);
 }
 
 DEFINE_LDST_DMA(uw, w, 16, le);
diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c
index 5f69626b3a8..3d7d6e0ca4a 100644
--- a/hw/intc/pnv_xive.c
+++ b/hw/intc/pnv_xive.c
@@ -171,7 +171,7 @@  static uint64_t pnv_xive_vst_addr_indirect(PnvXive *xive, uint32_t type,
 
     /* Get the page size of the indirect table. */
     vsd_addr = vsd & VSD_ADDRESS_MASK;
-    vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+    vsd = ldq_be_dma(&address_space_memory, vsd_addr, MEMTXATTRS_UNSPECIFIED);
 
     if (!(vsd & VSD_ADDRESS_MASK)) {
 #ifdef XIVE_DEBUG
@@ -194,7 +194,8 @@  static uint64_t pnv_xive_vst_addr_indirect(PnvXive *xive, uint32_t type,
     /* Load the VSD we are looking for, if not already done */
     if (vsd_idx) {
         vsd_addr = vsd_addr + vsd_idx * XIVE_VSD_SIZE;
-        vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+        vsd = ldq_be_dma(&address_space_memory, vsd_addr,
+                         MEMTXATTRS_UNSPECIFIED);
 
         if (!(vsd & VSD_ADDRESS_MASK)) {
 #ifdef XIVE_DEBUG
@@ -541,7 +542,7 @@  static uint64_t pnv_xive_vst_per_subpage(PnvXive *xive, uint32_t type)
 
     /* Get the page size of the indirect table. */
     vsd_addr = vsd & VSD_ADDRESS_MASK;
-    vsd = ldq_be_dma(&address_space_memory, vsd_addr);
+    vsd = ldq_be_dma(&address_space_memory, vsd_addr, MEMTXATTRS_UNSPECIFIED);
 
     if (!(vsd & VSD_ADDRESS_MASK)) {
 #ifdef XIVE_DEBUG
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
index 877df8752a0..b8a936bd04a 100644
--- a/hw/nvram/fw_cfg.c
+++ b/hw/nvram/fw_cfg.c
@@ -358,7 +358,7 @@  static void fw_cfg_dma_transfer(FWCfgState *s)
     if (dma_memory_read(s->dma_as, dma_addr,
                         &dma, sizeof(dma), MEMTXATTRS_UNSPECIFIED)) {
         stl_be_dma(s->dma_as, dma_addr + offsetof(FWCfgDmaAccess, control),
-                   FW_CFG_DMA_CTL_ERROR);
+                   FW_CFG_DMA_CTL_ERROR, MEMTXATTRS_UNSPECIFIED);
         return;
     }
 
@@ -444,7 +444,7 @@  static void fw_cfg_dma_transfer(FWCfgState *s)
     }
 
     stl_be_dma(s->dma_as, dma_addr + offsetof(FWCfgDmaAccess, control),
-                dma.control);
+                dma.control, MEMTXATTRS_UNSPECIFIED);
 
     trace_fw_cfg_read(s, 0);
 }