Commit Graph

5 Commits

Author SHA1 Message Date
Sebastian Macke
93147a180c target-openrisc: Correct memory bounds checking for the tlb buffers
The mtspr and mfspr routines didn't check for the correct memory boundaries.
This fixes a segmentation fault while booting Linux.

Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
2013-11-20 21:47:17 +08:00
Sebastian Macke
d51552176a openrisc-timer: Reduce overhead, Separate clock update functions
The clock value is only evaluated when really necessary reducing
the overhead of the timer handling.

This also solves a problem in the way the Linux kernel
handles the timer and the expected accuracy.
The old version could lead to inaccurate timings.

Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
2013-11-20 21:46:45 +08:00
Andreas Färber
259186a7d2 cpu: Move halted and interrupt_request fields to CPUState
Both fields are used in VMState, thus need to be moved together.
Explicitly zero them on reset since they were located before
breakpoints.

Pass PowerPCCPU to kvmppc_handle_halt().

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12 10:35:55 +01:00
Andreas Färber
dd51dc5262 target-openrisc: Clean up triple QOM casts
Instead of calling openrisc_env_get_cpu(), casting to CPU() via the
ENV_GET_CPU() compatibility macro and casting back to OPENRISC_CPU(),
just call openrisc_env_get_cpu() directly.

ENV_GET_CPU() is meant as workaround for target-independent code only.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-27 14:34:26 +01:00
Jia Liu
4dd044c6ba target-or32: Add system instructions
Add OpenRISC system instructions.

Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-27 21:13:03 +00:00