Remove a lot of unneccesary things from shadow.h, and move the shadow lock
entirely inside the shadow code.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
This is rudimentary support for parts of the BIOS Boot Specification,
just enough to use Etherboot ROM images.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
The recent change to use a default DMA bit width of 30 bits (required
by chips like the b44) only converted the streaming DMA primitives.
The coherent mappings are still hard-coded to 31 bits. This means
that b44 still doesn't work under Xen.
This patch makes the io_tlb_dma_bits variable global and uses it for
coherent memory mappings.
Thanks to Calvin Webster for providing a machine with a b44 and 2G
of memory I've been able to verify that this finally makes the b44
work under Xen.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Rename 'io_tlb_dma_bits' to the more correct 'dma_bits'. This also
affects the name of the boot parameter, which is now 'dma_bits='.
Signed-off-by: Keir Fraser <keir@xensource.com>
This eliminates the risk of overflowing the kernel stack and is a
reasonable policy given that we have no concept of priorities among
event sources.
Signed-off-by: Keir Fraser <keir@xensource.com>
- benefits LAPIC calibration
- makes scheduling policy based on LAPIC more precise
- makes LAPIC timer code becomes simpler and cleaner after using
periodic time layer
Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com>
programmed as periodic timer and adds them to abstract layer, which
keeps track of pending_intr_nr to avoid time interrupt lost and
sync'ed timer with TSC.
It also makes some cleanup to the time related code.
Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com>
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Resolves performance issues concerning AMD-V virtual interrupt/event
injection:
- Remove extra VINTRs vmexits, and only setup fake interrupt if intr
pending.
- Allow both event injection and interrupt injection concurrently in
vmcb.
Signed-off-by: Tom Woller <thomas.woller@amd.com>
Since we had changed to use event callback to deliver interrupts,
1. The pending_interruption is changed to pending_event.
2. get_ivr, set_tpr, get_trp and set_eoi are not used or only used
in the initialization phase. There is no need to write this code
in assembly. This code is deleted.
3. hyper_ssm_i needs to be rewritten to jump to entchn_callback_handler
instead of iva+0x3000 interrupt handler. I will do this later.
Signed-off-by: Anthony Xu <anthony.xu@intel.com>
kernel_ variables. This fixes reboot of PV guests.
Also, give XendConfig its own logger, to allow us to tweak the log level for
that module independently.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
not (of course). Return if the 1st detach is successful, try the 2nd one
if it was not successful. Throw an error if the 2nd one fails.
This should also fix problems I am currently seeing in the xm-test
suite.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
No need to init global variables to zero as it will place them in the
data segment rather than the bss segment.
Signed-off-by: Jes Sorensen <jes@sgi.com>
