diff options
| author | Liran Alon <liran.alon@oracle.com> | 2020-03-12 18:54:24 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-10 12:09:47 -0400 |
| commit | aaacf1c15a225ffeb1ff066b78e211594b3a5053 (patch) | |
| tree | f2237701b60861cbad3ee3b96f6d6154604e3d9b /hw/i386/vmport.c | |
| parent | dcd938f032d3cca5d33d9faaca591b498d40debe (diff) | |
hw/i386/vmport: Add support for CMD_GETBIOSUUID
This is VMware documented functionallity that some guests rely on.
Returns the BIOS UUID of the current virtual machine.
Note that we also introduce a new compatability flag "x-cmds-v2" to
make sure to expose new VMPort commands only to new machine-types.
This flag will also be used by the following patches that will introduce
additional VMPort commands.
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Message-Id: <20200312165431.82118-10-liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386/vmport.c')
| -rw-r--r-- | hw/i386/vmport.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c index 359cdef1e0..8006ff91d4 100644 --- a/hw/i386/vmport.c +++ b/hw/i386/vmport.c @@ -32,6 +32,7 @@ #include "hw/isa/isa.h" #include "hw/i386/vmport.h" #include "hw/qdev-properties.h" +#include "sysemu/sysemu.h" #include "sysemu/hw_accel.h" #include "qemu/log.h" #include "cpu.h" @@ -43,12 +44,15 @@ #define VMPORT_COMPAT_READ_SET_EAX_BIT 0 #define VMPORT_COMPAT_SIGNAL_UNSUPPORTED_CMD_BIT 1 #define VMPORT_COMPAT_REPORT_VMX_TYPE_BIT 2 +#define VMPORT_COMPAT_CMDS_V2_BIT 3 #define VMPORT_COMPAT_READ_SET_EAX \ (1 << VMPORT_COMPAT_READ_SET_EAX_BIT) #define VMPORT_COMPAT_SIGNAL_UNSUPPORTED_CMD \ (1 << VMPORT_COMPAT_SIGNAL_UNSUPPORTED_CMD_BIT) #define VMPORT_COMPAT_REPORT_VMX_TYPE \ (1 << VMPORT_COMPAT_REPORT_VMX_TYPE_BIT) +#define VMPORT_COMPAT_CMDS_V2 \ + (1 << VMPORT_COMPAT_CMDS_V2_BIT) #define VMPORT(obj) OBJECT_CHECK(VMPortState, (obj), TYPE_VMPORT) @@ -143,6 +147,18 @@ static uint32_t vmport_cmd_get_version(void *opaque, uint32_t addr) return port_state->vmware_vmx_version; } +static uint32_t vmport_cmd_get_bios_uuid(void *opaque, uint32_t addr) +{ + X86CPU *cpu = X86_CPU(current_cpu); + uint32_t *uuid_parts = (uint32_t *)(qemu_uuid.data); + + cpu->env.regs[R_EAX] = le32_to_cpu(uuid_parts[0]); + cpu->env.regs[R_EBX] = le32_to_cpu(uuid_parts[1]); + cpu->env.regs[R_ECX] = le32_to_cpu(uuid_parts[2]); + cpu->env.regs[R_EDX] = le32_to_cpu(uuid_parts[3]); + return cpu->env.regs[R_EAX]; +} + static uint32_t vmport_cmd_ram_size(void *opaque, uint32_t addr) { X86CPU *cpu = X86_CPU(current_cpu); @@ -170,9 +186,13 @@ static void vmport_realizefn(DeviceState *dev, Error **errp) isa_register_ioport(isadev, &s->io, 0x5658); port_state = s; + /* Register some generic port commands */ vmport_register(VMPORT_CMD_GETVERSION, vmport_cmd_get_version, NULL); vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL); + if (s->compat_flags & VMPORT_COMPAT_CMDS_V2) { + vmport_register(VMPORT_CMD_GETBIOSUUID, vmport_cmd_get_bios_uuid, NULL); + } } static Property vmport_properties[] = { @@ -183,6 +203,8 @@ static Property vmport_properties[] = { VMPORT_COMPAT_SIGNAL_UNSUPPORTED_CMD_BIT, true), DEFINE_PROP_BIT("x-report-vmx-type", VMPortState, compat_flags, VMPORT_COMPAT_REPORT_VMX_TYPE_BIT, true), + DEFINE_PROP_BIT("x-cmds-v2", VMPortState, compat_flags, + VMPORT_COMPAT_CMDS_V2_BIT, true), /* Default value taken from open-vm-tools code VERSION_MAGIC definition */ DEFINE_PROP_UINT32("vmware-vmx-version", VMPortState, |