KVM/MIPS32: Infrastructure/build files.

- Add the KVM option to MIPS build files.
- Add default config files for KVM host/guest kernels.
- Change the link address for the Malta KVM Guest kernel to UM (0x40100000).
- Add KVM Kconfig file with KVM/MIPS specific options

Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ae9c716c46bb..87d50d73d3b3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1242,6 +1242,7 @@ config CPU_MIPS32_R2
         select CPU_HAS_PREFETCH
         select CPU_SUPPORTS_32BIT_KERNEL
         select CPU_SUPPORTS_HIGHMEM
+        select HAVE_KVM
         help
           Choose this option to build a kernel for release 2 or later of the
           MIPS32 architecture.  Most modern embedded systems with a 32-bit
@@ -1743,6 +1744,20 @@ config 64BIT
 
 endchoice
 
+config KVM_GUEST
+        bool "KVM Guest Kernel"
+        help
+          Select this option if building a guest kernel for KVM (Trap & Emulate) mode
+
+config KVM_HOST_FREQ
+        int "KVM Host Processor Frequency (MHz)"
+        depends on KVM_GUEST
+        default 500
+        help
+          Select this option if building a guest kernel for KVM to skip
+          RTC emulation when determining guest CPU Frequency.  Instead, the guest
+          processor frequency is automatically derived from the host frequency.
+
 choice
         prompt "Kernel page size"
         default PAGE_SIZE_4KB
@@ -2023,6 +2038,7 @@ config SB1_PASS_2_1_WORKAROUNDS
         depends on CPU_SB1 && CPU_SB1_PASS_2
         default y
 
+
 config 64BIT_PHYS_ADDR
         bool
 
@@ -2556,3 +2572,5 @@ source "security/Kconfig"
 source "crypto/Kconfig"
 
 source "lib/Kconfig"
+
+source "arch/mips/kvm/Kconfig"