Commit Graph

6 Commits

Author SHA1 Message Date
Mihai Caraman 307d9008ed KVM: PPC: e500: Add support for TLBnPS registers
Add support for TLBnPS registers available in MMU Architecture Version
(MAV) 2.0.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26 20:27:07 +02:00
Mihai Caraman 8893a188b1 KVM: PPC: e500: Move vcpu's MMU configuration to dedicated functions
Vcpu's MMU default configuration and geometry update logic was buried in
a chunk of code. Move them to dedicated functions to add more clarity.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26 20:27:07 +02:00
Mihai Caraman a85d2aa23e KVM: PPC: e500: Expose MMU registers via ONE_REG
MMU registers were exposed to user-space using sregs interface. Add them
to ONE_REG interface using kvmppc_get_one_reg/kvmppc_set_one_reg delegation
mechanism.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26 20:27:06 +02:00
Alexander Graf b9e3e20893 KVM: PPC: E500: Remove kvmppc_e500_tlbil_all usage from guest TLB code
The guest TLB handling code should not have any insight into how the host
TLB shadow code works.

kvmppc_e500_tlbil_all() is a function that is used for distinction between
e500v2 and e500mc (E.HV) on how to flush shadow entries. This function really
is private between the e500.c/e500mc.c file and e500_mmu_host.c.

Instead of this one, use the public kvmppc_core_flush_tlb() function to flush
all shadow TLB entries. As a nice side effect, with this we also end up
flushing TLB1 entries which we forgot to do before.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-24 19:23:34 +01:00
Alexander Graf 483ba97c0f KVM: PPC: E500: Make clear_tlb_refs and clear_tlb1_bitmap static
Host shadow TLB flushing is logic that the guest TLB code should have
no insight about. Declare the internal clear_tlb_refs and clear_tlb1_bitmap
functions static to the host TLB handling file.

Instead of these, we can use the already exported kvmppc_core_flush_tlb().
This gives us a common API across the board to say "please flush any
pending host shadow translation".

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-24 19:23:33 +01:00
Alexander Graf b71c9e2fb7 KVM: PPC: E500: Split host and guest MMU parts
This patch splits the file e500_tlb.c into e500_mmu.c (guest TLB handling)
and e500_mmu_host.c (host TLB handling).

The main benefit of this split is readability and maintainability. It's
just a lot harder to write dirty code :).

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-24 19:23:31 +01:00