Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: features, cleanups, fixes

vhost-user support without ioeventfd
word replacements in vhost user spec
shpc improvements

cleanups, fixes all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits)
  tests/data/acpi/virt: drop (most) duplicate files.
  hw/cxl/mailbox: Use new UUID network order define for cel_uuid
  qemu/uuid: Add UUID static initializer
  qemu/bswap: Add const_le64()
  tests: acpi: Update q35/DSDT.cxl for removed duplicate UID
  hw/i386/acpi: Drop duplicate _UID entry for CXL root bridge
  tests/acpi: Allow update of q35/DSDT.cxl
  hw/cxl: Add CXL_CAPACITY_MULTIPLIER definition
  hw/cxl: set cxl-type3 device type to PCI_CLASS_MEMORY_CXL
  hw/pci-bridge/cxl_downstream: Fix type naming mismatch
  hw/mem/cxl_type3: Improve error handling in realize()
  MAINTAINERS: Add Fan Ni as Compute eXpress Link QEMU reviewer
  intel-iommu: send UNMAP notifications for domain or global inv desc
  smmu: switch to use memory_region_unmap_iommu_notifier_range()
  memory: introduce memory_region_unmap_iommu_notifier_range()
  intel-iommu: fail DEVIOTLB_UNMAP without dt mode
  intel-iommu: fail MAP notifier without caching mode
  memory: Optimize replay of guest mapping
  chardev/char-socket: set s->listener = NULL in char_socket_finalize
  hw/pci: Trace IRQ routing on PCI topology
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 11 deletions

diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 68c22016d2..3d606a20b4 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -328,7 +328,7 @@ static void microvm_memory_init(MicrovmMachineState *mms)
     rom_set_fw(fw_cfg);
 
     if (machine->kernel_filename != NULL) {
-        x86_load_linux(x86ms, fw_cfg, 0, true, false);
+        x86_load_linux(x86ms, fw_cfg, 0, true);
     }
 
     if (mms->option_roms) {
@@ -376,8 +376,7 @@ static void microvm_fix_kernel_cmdline(MachineState *machine)
     MicrovmMachineState *mms = MICROVM_MACHINE(machine);
     BusState *bus;
     BusChild *kid;
-    char *cmdline, *existing_cmdline;
-    size_t len;
+    char *cmdline;
 
     /*
      * Find MMIO transports with attached devices, and add them to the kernel
@@ -386,8 +385,7 @@ static void microvm_fix_kernel_cmdline(MachineState *machine)
      * Yes, this is a hack, but one that heavily improves the UX without
      * introducing any significant issues.
      */
-    existing_cmdline = fw_cfg_read_bytes_ptr(x86ms->fw_cfg, FW_CFG_CMDLINE_DATA);
-    cmdline = g_strdup(existing_cmdline);
+    cmdline = g_strdup(machine->kernel_cmdline);
     bus = sysbus_get_default();
     QTAILQ_FOREACH(kid, &bus->children, sibling) {
         DeviceState *dev = kid->child;
@@ -411,12 +409,9 @@ static void microvm_fix_kernel_cmdline(MachineState *machine)
         }
     }
 
-    len = strlen(cmdline);
-    if (len > VIRTIO_CMDLINE_TOTAL_MAX_LEN + strlen(existing_cmdline)) {
-        fprintf(stderr, "qemu: virtio mmio cmdline too large, skipping\n");
-    } else {
-        memcpy(existing_cmdline, cmdline, len + 1);
-    }
+    fw_cfg_modify_i32(x86ms->fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(cmdline) + 1);
+    fw_cfg_modify_string(x86ms->fw_cfg, FW_CFG_CMDLINE_DATA, cmdline);
+
     g_free(cmdline);
 }