Hi, On 7/5/19 11:47 PM, Denis Obrezkov wrote: > So, > > >> I am going to try to expose the whole crossbar to the dom0 by mapping it >> into dom0 and after that to unmap it and restrict the use of the control >> register via register_mmio_handler. Don't know whether this will work. >> > > I tried and write now now visible progress: > --- a/xen/arch/arm/platforms/omap5.c > +++ b/xen/arch/arm/platforms/omap5.c > @@ -23,6 +23,8 @@ > #include <xen/vmap.h> > #include <asm/io.h> > > +#define OMAP5_CTRL_CORE_MPU_IRQ 0x00000A48 > + > void omap5_init_secondary(void); > asm ( > ".text \n\t" > @@ -124,6 +126,8 @@ static int omap5_specific_mapping(struct domain *d) > map_mmio_regions(d, gaddr_to_gfn(OMAP5_SRAM_PA), 32, > maddr_to_mfn(OMAP5_SRAM_PA)); > > + map_mmio_regions(d, gaddr_to_gfn(OMAP5_CTRL_CORE_MPU_IRQ), 300, > + maddr_to_mfn(OMAP5_CTRL_CORE_MPU_IRQ)); > return 0; > } > > I can see there is a mistake in OMAP5_CTRL_CORE_MPU_IRQ address, so, I tried the right address for the MPU crossbar cotrol registers and I also tried to expose the whole control CTRL register but unsurprisingly haven't succeeded.
-- Regards, Denis Obrezkov
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