Hypervisor Reverse Engineering: Difference between revisions
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= Event Notification = | |||
*Event Notfication is used e.g. to notify a LPAR about some event, e.g. device interrupt or notify a LPAR about destruction of another LPAR. | |||
*For example Process 9 is notified through Event Notification when LPAR 2 is destructed. | |||
*During LPAR construction, Process 9 creates an Outlet object with '''syscall 0x1001A''' and then passes the outlet ID to the '''syscall 0x10009''' that constructs the LINUX LPAR. In this way Process 9 is notified when LINUX LPAR is destructed. | |||
== Outlet class == | |||
This is the base Outlet class. There are different types of Outlet and they derive from this base class. | |||
=== vtable === | |||
0x00357DC0 (3.15) | |||
=== Member variables === | |||
offset 0x30 - type (8 bytes) | |||
offset 0x38 - pointer to LPAR that owns this Outlet object | |||
offset 0x48 - outlet id (8 bytes) | |||
offset 0x90 - VIRQ assigned to this Outlet object (4 bytes) | |||
== Event Receive Port class == | |||
*This type of Outlet is created e.g. in '''lv1_construct_event_receive_port''' and in '''syscall 0x1001A'''. | |||
*HV calls '''lv1_connect_irq_plug''' and '''lv1_connect_irq_plug_ext''' assigns a VIRQ to Event Receive Port object. | |||
=== vtable === | |||
0x00357E88 | |||
== VUART Outlet == | |||
*HV supports only one VUART Outlet per LPAR | |||
*'''lv1_configure_virtual_uart_irq''' constructs a VUART Outlet object and passes the address of LPAR's VUART IRQ Bitmap to HV | |||
=== vtable === | |||
0x00357DC0 | |||
=== VUART IRQ Bitmap === | |||
*At address 0x38(LPAR ptr) + 0x158 is the VUART IRQ Bitmap owned by HV for LPAR (4 * 8 bytes = 256 bits) | |||
*At address 0x38(LPAR ptr) + 0x150 is stored the physical address of LPAR's VUART IRQ Bitmap that was passed to '''lv1_configure_virtual_uart_irq''' | |||
*When a VUART interrupt is generated by HV then first the VUART IRQ Bitmap owned by HV is updated and then this bitmap is copied to LPAR's VUART IRQ Bitmap, so VUART IRQ Bitmap is stored twice, once in HV and once in LPAR, just like IRQ State Bitmap. | |||
*VUART IRQ Bitmap is not allowed to cross page boundary of LPAR memory region where it is stored. HV checks it and makes sure that it doesn't happen. | |||
*'''GameOS 3.41''' VUART IRQ bitmap is at address '''0x80000000003556E8''' and of size '''32 bytes (256 bits, each bit corresponds to a VUART port)'''. | |||
*'''GameOS 3.15''' VUART IRQ bitmap is at address '''0x8000000000354768'''. | |||
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Revision as of 00:27, 12 March 2011
This is a copy of the page from 22nd of February 2011, right before ps3wiki.lan.st went down.
Event Notification
- Event Notfication is used e.g. to notify a LPAR about some event, e.g. device interrupt or notify a LPAR about destruction of another LPAR.
- For example Process 9 is notified through Event Notification when LPAR 2 is destructed.
- During LPAR construction, Process 9 creates an Outlet object with syscall 0x1001A and then passes the outlet ID to the syscall 0x10009 that constructs the LINUX LPAR. In this way Process 9 is notified when LINUX LPAR is destructed.
Outlet class
This is the base Outlet class. There are different types of Outlet and they derive from this base class.
vtable
0x00357DC0 (3.15)
Member variables
offset 0x30 - type (8 bytes)
offset 0x38 - pointer to LPAR that owns this Outlet object
offset 0x48 - outlet id (8 bytes)
offset 0x90 - VIRQ assigned to this Outlet object (4 bytes)
Event Receive Port class
- This type of Outlet is created e.g. in lv1_construct_event_receive_port and in syscall 0x1001A.
- HV calls lv1_connect_irq_plug and lv1_connect_irq_plug_ext assigns a VIRQ to Event Receive Port object.
vtable
0x00357E88
VUART Outlet
- HV supports only one VUART Outlet per LPAR
- lv1_configure_virtual_uart_irq constructs a VUART Outlet object and passes the address of LPAR's VUART IRQ Bitmap to HV
vtable
0x00357DC0
VUART IRQ Bitmap
- At address 0x38(LPAR ptr) + 0x158 is the VUART IRQ Bitmap owned by HV for LPAR (4 * 8 bytes = 256 bits)
- At address 0x38(LPAR ptr) + 0x150 is stored the physical address of LPAR's VUART IRQ Bitmap that was passed to lv1_configure_virtual_uart_irq
- When a VUART interrupt is generated by HV then first the VUART IRQ Bitmap owned by HV is updated and then this bitmap is copied to LPAR's VUART IRQ Bitmap, so VUART IRQ Bitmap is stored twice, once in HV and once in LPAR, just like IRQ State Bitmap.
- VUART IRQ Bitmap is not allowed to cross page boundary of LPAR memory region where it is stored. HV checks it and makes sure that it doesn't happen.
- GameOS 3.41 VUART IRQ bitmap is at address 0x80000000003556E8 and of size 32 bytes (256 bits, each bit corresponds to a VUART port).
- GameOS 3.15 VUART IRQ bitmap is at address 0x8000000000354768.
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